English Words: T

27,828 words · Page 151 of 557

tetrabariumnoun

Four barium atoms or cations in a molecule (Ba₄)

tetrabasicadj

containing four replaceable hydrogen atoms

tetrabasicitynoun

The quality of being tetrabasic.

tetrabelodontadj

Having four lower incisors missing.

tetrabenazinenoun

A serotonin antagonist C₁₉H₂₇NO₃ that is used especially in the treatment of psychosis and anxiety.

tetraberylliumnoun

Four atoms of beryllium in a chemical compound.

tetrabismuthnoun

Four bismuth atoms or cations in a molecule (Bi₄)

tetraboranenoun

The borane B₄H₁₀; a foul-smelling toxic gas.

tetraboratenoun

Any borate having four boron atoms.

tetraboric acidnoun

pyroboric acid

tetraboridenoun

Any boride having four boron atoms

tetraborohydridenoun

Any salt that contains four borohydride anions

tetraboronnoun

Four boron atoms in a compound

tetrabrachionnoun

A highly thermostable surface protein, of unusual structure, isolated from an archaebacterium.

tetrabromidenoun

Any bromide containing four bromine atoms in each molecule.

tetrabrominatedadj

brominated with four bromine atoms

tetrabromonoun

Four bromo groups in a compound

tetrabromocupratenoun

The anion CuBr₄²⁻; any salt containing this anion

tetrabromoethylenenoun

The brominated alkene CBr₂=CBr₂

tetrabromophenolphthaleinnoun

A certain phthalein dye.

tetrabutoxidenoun

Any compound that contains four butoxide groups

tetrabutylnoun

Four butyl groups in a molecule

tetrabutylammoniumnoun

The quaternary ammonium cation (CH₃-CH₂-CH₂-CH₂)₄N⁺

tetrabutyltinnoun

A stable organotin compound, a combustible, colourless liquid at room temperature, that is the starting material for tributyltin and dibutyltin.

tetracaesiumnoun

Four caesium atoms or cations in a molecule (Cs₄)

tetracainenoun

A crystalline basic ester C₁₅H₂₄N₂O₂ that is closely related chemically to procaine and is used chiefly in the form of its hydrochloride as a local anesthetic.

tetracalciumnoun

Four calcium atoms or ions in a compound

tetracameraladj

Having four chambers; comprising four separate parts.

tetracameralismnoun

The practice of having four legislative bodies or parliamentary chambers, such as the Medieval Scandinavian deliberative assemblies divided into separate estates for the nobility, clergy, burghers, and peasants.

tetracarbenenoun

Four carbene groups in a molecule (typically as ligands in an organometallic complex)

tetracarbidenoun

Four carbon anions in a molecule (C₄)

tetracarbonnoun

Four carbon atoms in a compound

tetracarbonatenoun

Any compound containing four carbonate groups in each molecule or unit cell

tetracarbonylnoun

Any compound having four carbonyl groups.

tetracarboxylicadj

Having four carboxyl groups

tetracarboxylic acidnoun

Any organic compound having four carboxylic acid groups

tetracarpellaryadj

Containing four carpels.

tetracarpellateadj

Having four carpels

tetracategorynoun

A four-dimensional form of category.

tetracationnoun

Any cation, of general formula X⁴⁺, formed by the removal of four electrons from a neutral species

tetracationicadj

Relating to tetracation(s)

tetracavitaryadj

Having four cavities

tetracellularadj

Synonym of quadricellular.

tetracenenoun

A polycyclic aromatic hydrocarbon; the acene containing four fused rings, isomeric with tetraphene; any derivative of this compound.

tetracephalousadj

Having four heads.

tetrachloridenoun

any chloride containing four chlorine atoms in each molecule

tetrachlorinatedadj

Modified by the addition of four atoms of chlorine

tetrachloronoun

Four chlorine atoms in a compound

tetrachloroauratenoun

The monovalent anion AuCl₄⁻ formally derived from the aurate anion; any salt containing this anion

Spelling & Dictionary Insight

The English alphabetical index for the letter T contains 27,828 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 557 pages, and you are currently viewing page 151. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "T" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.