English words: quadratojugular to quadrual

300 English words, part 3 of 13 of the words starting with Q, A to Z. 16 have a page of their own.

English words quadratojugular to quadrual

quadratojugular noun: A bone found in some reptiles, amphibians, and birds in front of the quadrate at the base of the temporal fossa.
quadratomandibular adjective: Relating to the quadrate bone and the mandible.
quadratosquamosal adjective: Both quadrate and squamosal
quadratrix noun: A curve having ordinates which are a measure of the area (or quadrature) of another curve.
quadratum noun: The quadrate bone.
quadrature noun /ˈkwɒd.ɹəˌtjʊə(ɹ)/: The process of making something square; squaring.
quadrature amplitude modulation noun: A modulation scheme that conveys data by applying amplitude modulation to two carrier waves at once. These two waves, usually sinusoids, are out of phase...
quadrature of the circle noun: The problem, proposed by ancient Greek geometers, of using a finite ruler-and-compass construction to make a square with the same area as a given circle.
quadraturism noun: An Italian genre of painting that used architectural elements to create illusions of perspective.
quadraturist noun /ˈkwɒdɹət͡ʃəɹɪst/: A person who paints quadratures.
quadratus noun /kwɒˈdreɪ.təs/: Any of several roughly square or rectangular muscles, e.g. in the abdomen, thigh, and eye socket.
quadravalent adjective: Alternative form of quadrivalent.
quadravigesimal adjective, noun /ˌkwɒdˈɹɑvaɪd͡ʒɛsɪməl/: A number system with base twenty-four, using the digits 0–9 and A–N (or Greek α-ω without numerals).
quadreble noun, verb: A voice in a musical composition (usually for male voices) above the treble; descant.
quadrectomy noun: Alternative form of quadrantectomy.
quadrefoil noun: Alternative spelling of quatrefoil.
quadrel noun: A square brick or tile; a quarrel.
quadrella noun: A bet where the bettor must pick the winners of four nominated races at the same track.
quadreme noun: A galley with four banks of oars, one above the other
quadrennial adjective, noun /kwɒˈdɹɛn.i.əl/: Happening every four years.
quadrennially adverb: Every four years.
quadrennium noun /kwɑˈdrɛniəm/: A period of 4 years, particularly (historical) the sets of four years in the ancient Egyptian and Greek calendars.
quadri- prefix /(ˌ)kwɒdɹɪ/: Four.
quadri-rotor adjective: Alternative spelling of quadrirotor (adjective).
quadriacceleration noun: Synonym of four-acceleration.
quadriad noun: A grouping of four things.
quadrialate adjective: Having four winglike extensions or parts.
quadriannulate adjective: Having four rings.
quadriarticulate adjective: Having four joints.
quadriarticulated adjective: Alternative form of quadriarticulate.
quadriaxial adjective: Having or relating to four axes.
quadriband adjective /ˈkwɒdɹɪˌbænd/: Supporting four frequency bands
quadribasic adjective: tetrabasic
quadrible adjective: Alternative form of quadrable.
quadric adjective, noun: A surface or curve whose shape is defined in terms of a quadratic equation.
quadricapsular adjective: Having four capsules
quadricarinate adjective: Having four carinae.
quadricellular adjective: Having four cells.
quadricentenarian noun: One who or that which is between 400 and 499 years old.
quadricentennial adjective, noun: Relating to a 400th anniversary.
quadricentesimal adjective: Based upon the number four hundred
quadricep noun: quadriceps
quadricephalous adjective: Having four heads.
quadriceps noun /ˈkwɒd.ɹɪ.sɛps/: A muscle having four heads, especially the large extensor at the front of the thigh.
quadriceps femoris noun: A group of four thigh muscles, including the rectus femoris, vastus lateralis, vastus intermedius, and vastus medialis muscles.
quadriceps tendon noun: In human anatomy, a tendon that connects the quadriceps femoris muscles to the superior aspects of the patella on the anterior of the thigh.
quadricepsplasty noun: corrective surgery to the quadriceps muscle
quadrichord noun: tetrachord
quadrichotomize verb: To divide into four sections
quadrichotomized adjective, verb: divided into four sections
quadriciliate adjective: Having four cilia.
quadriciliated adjective: Alternative form of quadriciliate.
quadricinium noun: A four-part composition.
quadricipital adjective: Of or pertaining to the quadriceps.
quadricolor adjective: Having four colors.
quadricolored adjective: Having four colors.
quadricolour adjective: Alternative spelling of quadricolor.
quadricoloured adjective: Alternative spelling of quadricolored.
quadricone noun: A quadric cone.
quadriconsonantal adjective, noun: which consist of four consonants.
quadricopter noun: Synonym of quadcopter.
quadricorn noun: Any quadricornous (four-horned) animal
quadricornous adjective: having four horns
quadricostate adjective: Having four ribs.
quadricovariant noun: a covariant of degree 4
quadricrescentoid adjective: Having four crescentic folds.
quadricriticoid noun: A quadratic criticoid.
quadriculated adjective: covered with a checkerboard pattern
quadricuspid adjective: Having four cusps.
quadricuspidate adjective: Having four cusps.
quadricyclane noun: A highly toxic norbornadiene isomer with potential applications in the storage of solar energy.
quadricycle noun: A four-wheeled pedal cycle.
quadricycle landing gear noun: An aircraft undercarriage configuration featuring four main wheels of roughtly equal size, arranged in tandem pairs along the fuselage centerline, offering...
quadricyclist noun: One who rides a quadricycle.
quadridavyne noun: A mineral found in volcanic ash.
quadridentate adjective: Having four teeth.
quadridentated adjective: Alternative form of quadridentate.
quadridentoid adjective: Having four "teeth"
quadridigitate adjective: Having only four fingers on a hand, or toes on a foot
quadridimensional adjective: four-dimensional
quadridimensionality noun: The quality of being quadridimensional.
quadridirectional adjective: In or relating to four directions.
quadriennial adjective, noun: Alternative form of quadrennial.
quadriennially adverb: Alternative form of quadrennially.
quadriennium noun: Alternative form of quadrennium.
quadrifarious adjective /ˌkwɒdrɪˈfɛəɹi.əs/: Arranged in four rows or ranks.
quadrifariously adverb: In a quadrifarious manner.
quadrifid adjective: Divided, or deeply cleft, into four parts.
quadrifilar adjective: Having four wires, threads or filaments.
quadrifine adjective: Of insect wings, four veined.
quadriflagellate adjective, noun: Having four flagella
quadrifocal adjective: Involving four foci.
quadrifoil adjective: Alternative form of quadrifoliate.
quadrifoliate adjective: Having four leaves.
quadrifoliolate adjective: Having four leaflets.
quadriforce noun: Synonym of four-force.
quadriform adjective: Having four forms, parts or aspects
quadrifrons noun: Synonym of tetrapylon.
quadrifrontal adjective: In the form of a quadrifrons.
quadrifurcate adjective, verb /ˌkwɒdɹɪˈfɜːkeɪt/: Branching fourfold; having four branches.
quadrifurcated adjective, verb: Having four forks or branches; quadrifurcate.
quadrifurcation noun: A division into four branches
quadrify verb: To convert into one or more quadrilaterals.
quadriga noun /kwɒdˈɹiː.ɡə/: A Roman racing chariot drawn by four horses abreast.
quadrigal adjective: Of or pertaining to a quadriga (four horse team)
quadrigamist noun: Someone who has four spouses at the same time.
quadrigamy noun: The state of having four spouses simultaneously.
quadrigate noun: Synonym of quadrigatus
quadrigatus noun: A medium-sized silver coin minted by the Roman Republic during the 3rd century B.C.E.
quadrigeminal adjective: Having four parts, or two pairs.
quadrigeminate adjective: Synonym of quadrigeminal.
quadrigeminum noun: One of the corpora quadrigemina.
quadrigeminy noun: A form of cardiac arrhythmia in which four beats are followed by a pause.
quadrigenarious adjective /ˌkwɒdrɪd͡ʒɪˈnɛəɹi.əs/: Having or consisting of four hundred.
quadrigeneric adjective: Of or relating to four genera.
quadrigenic adjective: produced by (the interaction of) four genes
quadriglandular adjective: Having or relating to four glands.
quadrigrade adjective: Belonging to a certain conjugation class of verbs in Old Japanese or Classical Japanese, so called due to their use of four vowels (grades or rows on the...
quadrigram noun: fourgram
quadrihybrid noun: A hybrid whose parents differ by four pairs of contrasting Mendelian characters.
quadrihydrate noun: tetrahydrate
quadrijugal adjective: Especially of a chariot: pulled by four horses.
quadrijugate adjective: Pinnate, with four pairs of leaflets.
quadrijugous adjective: quadrijugate
quadrilabial adjective: Articulated with two pairs of lips (i.e. involving mouth-to-mouth contact between two people).
quadrilaminar adjective: Having four layers.
quadrilaminate adjective: Having four layers.
quadrilater adjective, noun: quadrilateral
quadrilateral adjective, noun /ˌkwɒdɹɪˈlætəɹəl/: A polygon with four sides.
quadrilateral space syndrome noun: A rotator cuff denervation syndrome in which the axillary nerve is compressed at the quadrilateral space of the rotator cuff.
quadrilaterality noun: The quality of being quadrilateral.
quadrilateralization noun: Alternative form of quadrangulation.
quadrilateralize verb: To quadrangulate.
quadrilaterally adverb: In a quadrilateral fashion.
quadrilateralness noun: The quality of being quadrilateral.
quadrilateration noun: The determination of the location of a point based on its distance from four other points.
quadrileaflet adjective: Having four leaflets.
quadrilemma noun: A circumstance in which a choice must be made between four undesirable options.
quadrilinear adjective: Having, or bounded by, four lines.
quadrilinearity noun: The condition of being quadrilinear
quadrilinearly adverb: In a quadrilinear manner.
quadrilingual adjective, noun: Involving four languages.
quadrilingualism noun: The condition of being quadrilingual; the ability to speak four languages.
quadrilingually adverb: In four languages.
quadriliteral adjective, noun: Consisting of four letters.
quadriliteralism noun: The quality of being quadriliteral.
quadrillage noun: The use of a grid of squares superimposed on a document such as a map.
quadrille adjective, noun, verb /kwɒdˈɹɪl/: A dance originating in the mid-1700s with four couples forming a square, rather much like the modern square dance.
quadrille paper noun: Paper marked out with squares.
quadriller noun: One who dances the quadrille.
quadrilliard number: A thousand million million million million: 1 followed by twenty-seven zeros, 10²⁷.
quadrillion noun, number /kwɑˈdɹɪl.i.ən/: A thousand trillion (logic: 1,000 × 1,000⁴): 1 followed by fifteen zeros, 10¹⁵.
quadrillionaire noun: Somebody whose wealth is at least one quadrillion (10¹⁵) currency units (which is possible only in places with hyperinflated currencies).
quadrillionfold adjective, adverb: By a multiple of one quadrillion; by a quadrillion times as much or as many.
quadrillionth adjective, noun /kwɒdˈrɪl.i.ənθ/: The ordinal form of the number one quadrillion.
quadrilobate adjective: Having four lobes.
quadrilobe noun: Synonym of quatrefoil
quadrilobed adjective: Having four lobes.
quadrilobular adjective: Having four lobules.
quadrilocular adjective: Having four cells or compartments.
quadriloculate adjective: Having four loculi
quadriloculine adjective: quadrilocular
quadrilogue noun: A discourse or colloquy by four people.
quadrilogy noun: A tetralogy.
quadrimalleolar adjective: Involving the lateral malleolus, the medial malleolus, the distal posterior and the anterior tibial tubercule aspect of the tibia.
quadrimanous adjective: Alternative form of quadrumanous.
quadrimembral adjective: Having, or consisting of, four members.
quadrimer noun: tetramer
quadrimester noun: A period of four months or about four months.
quadrimetallic adjective: Containing atoms of four metals in each molecule.
quadrimillennial adjective: Occurring every four thousand years.
quadrimodal adjective: Having, or employing, four modes
quadrimodality noun: The condition of being quadrimodal
quadrimodular adjective: Having four modes of operation.
quadrimolecular adjective: Involving four molecules
quadrimonthly adverb: Occurring every four months.
quadrimoraic adjective: Having four morae.
quadrimoraicity noun: The property of having four morae.
quadrin noun: An old copper coin of small value.
quadrinate adjective: Having four divisions or leaflets.
quadrinational adjective: Of or pertaining to four nations.
quadrine noun: Alternative form of quatrin.
quadringenary noun: A quatercentenary
quadringentenary adjective, noun: Of or relating to a 400th anniversary.
quadringentennial adjective: Of or pertaining to a quadringenary
quadrinity noun: Alternative form of quaternity.
quadrinodal adjective: Having four nodes.
quadrinomial adjective, noun: Consisting of four names or parts or terms.
quadrinominal adjective: Alternative form of quadrinomial.
quadrinuclear adjective: Having four nuclei.
quadrinucleate adjective, noun: Having four nuclei.
quadrinucleated adjective: Alternative form of quadrinucleate.
quadrinvariant noun: an invariant of degree 4
quadrioxalate noun: A salt containing four equivalents of oxalic acid to one equivalent of the basic element (or to one equivalent of a univalent basic radical).
quadripara noun: A female who has borne four offspring.
quadriparental adjective: Involving four parents.
quadriparesia noun: Alternative form of quadriparesis.
quadriparesis noun: weakness or paralysis in all four limbs
quadriparetic adjective: Of, relating to, or affected by quadriparesis; having profound weakness in all four extremities.
quadriparous adjective: Having given birth to four offspring.
quadripartite adjective, noun: Divided into four parts.
quadripartitely adverb: In a quadripartite fashion; into four parts.
quadripartition noun, verb: A division into four parts.
quadripartitism noun: A quadripartite approach or policy.
quadripaschal adjective: Including four Passovers.
quadripedal adjective: four-footed
quadripennate adjective: Having four wings.
quadripetal adjective: Having four petals
quadriphase noun: A phase modulation technique that uses four different phase angles.
quadriphasic adjective: Having four phases
quadriphonic adjective: Alternative form of quadraphonic.
quadriphonics noun: Alternative form of quadraphonics.
quadriphony noun: Alternative form of quadraphony.
quadriphosphate noun: Any salt or ester containing four phosphate groups.
quadriphyllous adjective: Having four leaves
quadripinnate adjective: Having four pinnae
quadriplanar adjective: Composed of, or relating to, four planes.
quadriplane noun: Quadruplane.
quadriplegia noun /ˌkwɑdɹɪˈplid͡ʒə/: Paralysis from the neck down.
quadriplegic adjective, noun /ˌkwɒd.ɹɪˈp(ə)liː.dʒɪk/: Of, related to, or suffering from quadriplegia.
quadriplex adjective: Alternative form of quadruplex.
quadriplicate noun, verb: Alternative form of quadruplicate.
quadriplicated adjective: Alternative form of quadruplicated.
quadriploid noun: Alternative form of tetraploid.
quadripoint noun: A point at which four borders meet.
quadripolar adjective: Having or involving four poles.
quadripole noun: An electrical circuit that has two pairs of external terminals.
quadriporate adjective: Having four pores.
quadriportico noun: A four-sided portico.
quadriporticus noun: A nearly square courtyard surrounded by colonnaded porticoes.
quadriptych noun /kwɑːˈdɹɪp.tɪk/: A tetraptych.
quadripulse adjective: Employing four pulses (typically, four monophasic magnetic pulses)
quadriquadric noun: A curve that is the complete intersection of two quadric surfaces.
quadriracial adjective: Of or relating to four races.
quadriradial adjective, noun: Having four radiating chromatids
quadriradiate adjective, noun: Having or consisting of four rays or similar radiating parts.
quadriradical adjective, noun: which consist of four consonants in its root formula.
quadrireme noun /ˈkwɒd(ʒ)rɪriːm/: A galley with four banks of oars, each rowed by two oarsmen.
quadrirotor adjective: Having four rotors; having four main rotors.
quadrisecant noun: A line that passes through four points of the curve.
quadrisect verb: To divide into four parts.
quadrisection noun: The action of dividing something into four parts.
quadrisector noun: A line or curve that quadrisects something.
quadriseptate adjective: Having four septa.
quadriserial adjective: Arranged in four series.
quadriserially adverb: In a quadriserial manner.
quadriseriate adjective: In four rows or series.
quadriseriately adverb: In a quadriseriate manner.
quadrisetose adjective: Having four bristles.
quadrisonic adjective: quadraphonic
quadrispecific adjective: Involving four species.
quadrispiral adjective: Quadruply spiral; involving, or consisting of, four spirals.
quadristearate noun: Any ester containing four stearate groups.
quadrisulcate adjective: Having four hooves
quadrisyllabic adjective, noun: Having four syllables.
quadrisyllabical adjective: quadrisyllabic
quadrisyllable noun: A word of four syllables.
quadriternate adjective: Four times ternate.
quadritubercular adjective: Having four tubercles or cusps
quadrituberculate adjective: Synonym of quadritubercular.
quadrium noun: Synonym of quadrivium.
quadriurate noun: A urate containing four as much of the uric acid constituent as an ordinary urate.
quadrivalence noun: The condition of being quadrivalent.
quadrivalency noun: Synonym of quadrivalence.
quadrivalent adjective, noun /kwɒdrɪˈveɪlənt/: Having a valence of four.
quadrivalently adverb: In a quadrivalent manner.
quadrivalve adjective, noun: A door, shutter, etc. with four folds.
quadrivalvular adjective: Having or pertaining to four valves.
quadrivariate adjective: Having four variables.
quadrivector noun: Synonym of four-vector.
quadrivelocity noun: Synonym of four-velocity.
quadrivial adjective, noun /kwɒdˈɹɪvi.əl/: Any of the four "liberal arts" making up the quadrivium.
quadrivious adjective: In four directions; four ways.
quadrivirus noun: Any RNA virus of the family Quadriviridae
quadrivium noun /kwɒˈdɹɪvɪ.əm/: The higher division of the seven liberal arts in the Middle Ages, composed of geometry, astronomy, arithmetic, and music.
quadrivoltine adjective: Having four broods or litters in one year.
quadriwave adjective: Involving four waves or (more often) four wavefronts
quadro- prefix: Alternative form of quadri- (“four”).
quadrobic adjective: Of or relating to quadrobics.
quadrobics noun /kwɒˈdɹəʊ.bɪks/: Physical actions, movements, and exercises performed by an individual on all fours to mimic those of an animal.
quadrobist noun /kwɒˈdɹəʊ.bɪst/: An individual who performs quadrobics.
quadrobulary adjective: Having four trifling meanings
quadroclops noun: A creature with four eyes.
quadrocopter noun: Synonym of quadcopter.
quadrofoil noun: A hydrofoil (vessel) that has four wings.
quadroma noun: A particular type of hybridoma
quadromer noun: Alternative form of quadrimer.
quadrominium noun: A building divided into four residences as condominiums
quadroon adjective, noun /kwɑːˈdɹuːn/: A person considered three-fourths white, having one non-white grandparent.
quadrophonic adjective: Alternative spelling of quadraphonic.
quadrophonics noun: Alternative form of quadraphonics.
quadrophony noun: Alternative form of quadraphony.
quadropolar adjective: Alternative spelling of quadrupolar.
quadropoly noun /kwɒˈdɹɒpəli/: A market situation in which four companies exclusively provide a particular product or service.
quadrosilan noun: An antiandrogen.
quadrotor adjective, noun: Synonym of quadrirotor (“having four rotors or four main rotors”).
quadroxalate noun: A complex of oxalate and oxalic acid
quadroxide noun: A tetroxide.
quadru- prefix: Alternative form of quadri- (“four”).
quadrual adjective, noun: Alternative form of quadral.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0): each word's first meaning. A word with a page of its own links to it; for the rest, this line is PlainSpell's entry. Total under Q: 3,883 words, in 13 parts.