12-letter words containing o, r, i
- fibrinolysin — a proteolytic enzyme, formed in the blood from plasminogen, that causes the breakdown of the fibrin in blood clots.
- fibrinolysis — the disintegration or dissolution of fibrin, especially by enzymatic action.
- fibrinolytic — the disintegration or dissolution of fibrin, especially by enzymatic action.
- fibroadenoma — a benign tumor originating from glandular tissue, as in the female breast.
- fibroblastic — a cell that contributes to the formation of connective tissue fibers.
- fibromatosis — (pathology) The presence of multiple fibromas.
- fibromyalgia — a syndrome characterized by fatigue and chronic pain in the muscles and in tissues surrounding the joints.
- fibrosarcoma — a sarcoma derived from fibroblast cells, often able to generate collagen.
- fibrous root — a root, as in most grasses, having numerous, very fine branches of approximately the same length.
- fidel castro — Cipriano [sip-ree-ah-noh;; Spanish see-pree-ah-naw] /ˌsɪp riˈɑ noʊ;; Spanish ˌsi priˈɑ nɔ/ (Show IPA), 1858?–1924, Venezuelan military and political leader: president 1901–08; exiled 1908.
- field cornet — a commander of burgher troops called up in time of war or in an emergency, esp during the 19th century
- field ration — ration issued and authorized for troops in the field.
- field sports — sports carried on in the open countryside, such as hunting, shooting, or fishing
- field theory — a detailed mathematical description of the distribution and movement of matter under the influence of one or more fields.
- field-holler — a cry employing falsetto, portamento, and sudden changes of pitch, used in African-American work songs, later integrated into the techniques of the blues
- fifty-fourth — next after the fifty-third; being the ordinal number for 54.
- fig marigold — any of various plants of the genus Mesembryanthemum, having showy flowers of white, yellow, or pink.
- fingerboards — Plural form of fingerboard.
- fingerflower — purple foxglove.
- finno-ugrian — pertaining to the Finns and the Ugrians.
- fire balloon — a montgolfier.
- fire company — a company of firefighters.
- fire control — technical and sometimes automatic supervision of artillery or naval gunfire on a target, as for range, elevation, etc.
- fire station — a building in which firefighting apparatus and usually fire department personnel are housed; firehouse.
- fire support — support given by artillery and aircraft to infantry and armored vehicles.
- fireproofing — the act or process of rendering fireproof.
- firing order — the sequence of ignition in the cylinders of an internal-combustion engine
- firmer gouge — a narrow-bladed gouge similar in manner of use to a firmer chisel.
- first cousin — cousin (def 1).
- first nation — any of the indigenous peoples or Indian communities of Canada, especially one formally recognized by the Canadian government.
- first of all — to start with
- first person — the grammatical person used by a speaker in statements referring to himself or herself (first person singular) or to a group including himself or herself (first person plural)
- first school — A first school is a school for children aged between five and eight or nine.
- first violin — one of the principal group of violins in an orchestra
- firth of tay — the estuary of the River Tay on the North Sea coast of Scotland. Length: 40 km (25 miles)
- fish factory — a factory where fish is processed
- fisherpeople — Plural form of fisherperson.
- fisherperson — A fisherman or fisherwoman.
- fishing port — a town which has a lot of fishing boats
- fishing worm — an earthworm.
- fishmonger's — a shop that sells fish
- fissirostral — having a broad, deeply cleft beak or bill, as the swallows and goatsuckers.
- fitness room — a room with gym equipment in it
- fitting room — a room, as in a clothing store, where garments are tried on and measurements taken for alterations or other changes.
- flabelliform — Shaped like a fan; flabellate.
- flag officer — a naval officer above the rank of captain, as a fleet admiral, admiral, vice-admiral, rear admiral, or commodore, who is entitled to display a flag indicating his or her rank.
- flagelliform — long, slender, and flexible, like the lash of a whip.
- flammiferous — flame-producing
- flavoprotein — an enzyme, containing riboflavin and linked chemically with a protein, active in the oxidation of foods in animal cells.
- fleet prison — (formerly) a London prison, esp used for holding debtors