English Words: R

21,470 words · Page 286 of 430

RFInoun

Initialism of request for information.

RFIDnoun

Initialism of radio-frequency identification.

RFKname

Initialism of Robert Francis Kennedy (1925–1968).

RFMAname

Initialism of Respect for Marriage Act.

RFPnoun

Initialism of request for proposal.

RFSnoun

Initialism of reason for selling.

RGBnoun

Initialism of red, green, blue; a color model in which colors are represented by adding varying amounts of red, green, and blue light.

RGSSname

RGSS

rGyalrongname

Any of a group of rGyalrongic languages in the Sino-Tibetan language family, spoken in western Sichuan, China.

rGyalrongicadj

Of or relating to the rGyalrong languages

RHnoun

Initialism of relative humidity.

Rh-nulladj

Pertaining to the Rh-null syndrome, or blood produced by the syndrome.

rhabarbarateadj

Impregnated or tinctured with rhubarb.

rhabdiferousadj

Of a sponge cell, having many rodlike inclusions and secreting mucopolysaccharide.

rhabditenoun

A minute smooth rod-like or fusiform structure found in the tissues of many Turbellaria.

rhabditicadj

Relating to the rhabdite.

rhabditidnoun

nematode in the family Rhabditidae.

rhabditiformadj

Having the form of a nematode of the order Rhabditida.

rhabdo-prefix

rod, rod-like

rhabdocoelousadj

Of or relating to the Rhabdocoela.

rhabdoidadj

Shaped like a rod.

rhabdolithnoun

A minute calcareous rodlike structure found at both the surface and the bottom of the ocean, supposed by some to be a calcareous alga.

rhabdolithicadj

Relating to rhabdoliths.

rhabdomaladj

Relating to a rhabdom

rhabdomancernoun

One who carries out rhabdomancy; the user of a divining rod.

rhabdomancynoun

Divination with wands or rods, especially to use a divining rod to find things below the ground.

rhabdomenoun

In sponges, the shaft of a cladose rhabdus, bearing the cladome.

rhabdomeraladj

Alternative form of rhabdomeric.

rhabdomericadj

Of or pertaining to the rhabdomere

rhabdomyoblastnoun

A kind of elongated cell that is essential to the diagnosis of a rhabdomyosarcoma.

rhabdomyoblasticadj

Relating to rhabdomyoblasts.

rhabdomyocytenoun

A rod-shaped muscle cell

rhabdomyoidadj

Relating to or characteristic of rhabdomyoma.

rhabdomyolysisnoun

The rapid disintegration of striated muscle tissue accompanied by the excretion of myoglobin in the urine.

rhabdomyolyticadj

Of or pertaining to rhabdomyolysis.

rhabdomyomanoun

A non-cancerous tumor of skeletal muscle.

rhabdomyomatousadj

Of or relating to a rhabdomyoma.

rhabdomyosarcomanoun

A cancerous tumor of skeletal muscle.

rhabdophanenoun

Any of a range of phosphate minerals containing varying amounts of several lanthanides

rhabdophobianoun

The fear of being beaten with a rod.

rhabdophoranadj

Of or relating to the Rhabdophora.

rhabdornisnoun

Any of the small passerine birds of the genus Rhabdornis, endemic to the Philippines.

rhabdosarcomanoun

A malignant neoplasm derived from skeletal striated muscle

rhabdosomenoun

A graptolite colony.

rhabdospherenoun

A minute sphere composed of rhabdoliths.

rhabdosphincternoun

A sphincter consisting of striated muscle fibers.

rhabdovirusnoun

Any of the rod-shaped viruses belonging to the family Rhabdoviridae.

rhabdusnoun

A simple, straight spicule.

rhabduscinnoun

An amidoglycosyl- and vinyl-isonitrile tyrosine derivative that is a perimeter defense molecule in entomopathogenic bacteria

rhachicentesisnoun

Alternative spelling of rachicentesis.

Spelling & Dictionary Insight

The English alphabetical index for the letter R contains 21,470 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 430 pages, and you are currently viewing page 286. 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 "R" 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.