12-letter words containing o, i, l, f, r
- facilitatory — That serves to facilitate.
- factorisable — Alternative spelling of factorizable.
- factorizable — (mathematics, of an integer or polynomial etc) Able to be factorized.
- falling door — flap door (def 1).
- family court — court of domestic relations.
- favorability — The quality or degree of being viewed favorably.
- ferrofluidic — Of or pertaining to a ferrofluid.
- ferrosilicon — a ferroalloy containing up to 95 percent silicon.
- festivalgoer — A person attending a festival.
- fibrillation — the formation of fibrils.
- fibrilliform — of the form of a fibril.
- 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.
- fibroblastic — a cell that contributes to the formation of connective tissue fibers.
- fibromyalgia — a syndrome characterized by fatigue and chronic pain in the muscles and in tissues surrounding the joints.
- 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
- fig marigold — any of various plants of the genus Mesembryanthemum, having showy flowers of white, yellow, or pink.
- fingerflower — purple foxglove.
- fire balloon — a montgolfier.
- fire control — technical and sometimes automatic supervision of artillery or naval gunfire on a target, as for range, elevation, etc.
- first of all — to start with
- 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
- fisherpeople — Plural form of fisherperson.
- fissirostral — having a broad, deeply cleft beak or bill, as the swallows and goatsuckers.
- 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
- flickermouse — Alternative form of flittermouse.
- flight arrow — an arrow having a conical or pyramidal head without barbs.
- flightworthy — being in proper physical or mechanical condition for safe flight; airworthy: a flightworthy spacecraft.
- flindermouse — (obsolete) A bat (the mammal).
- flip-flopper — a person who makes a complete change of policy, opinion, etc
- flittermouse — bat2 (def 1).
- float bridge — a bridge, as from a pier to a boat, floating at one end and hinged at the other to permit loading and unloading at any level of water.
- floating rib — one member of the two lowest pairs of ribs, which are attached neither to the sternum nor to the cartilages of other ribs.
- floor polish — a substance used to polish floors
- floor-filler — a dance recording that is so catchy and popular that everyone in the place where it is played wants to dance
- flooring saw — a saw having a curved edge.
- flop forging — forging of both sides of a piece from the same die, the sides being identical.
- floppy drive — disk drive