12-letter words containing i, a, t, r
- fenestration — the design and disposition of windows and other exterior openings of a building.
- fermat prime — (mathematics) A prime number of the form 2^2^n + 1. Any prime number of the form 2^n+1 must be a Fermat prime. Fermat conjectured in a letter to someone or other that all numbers 2^2^n+1 are prime, having noticed that this is true for n=0,1,2,3,4. No further Fermat primes are known; several have been factorised, and several more have been proved composite without finding explicit factorisations.
- fermentation — the act or process of fermenting.
- fermentative — tending to produce or undergo fermentation.
- fertilizable — Capable of being fertilized.
- festivalgoer — A person attending a festival.
- fianarantsoa — a city in E central Madagascar.
- fiberization — the process or practice of breaking into fibres
- fibrillating — Present participle of fibrillate.
- fibrillation — the formation of fibrils.
- fibroblastic — a cell that contributes to the formation of connective tissue fibers.
- fibromatosis — (pathology) The presence of multiple fibromas.
- 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 ration — ration issued and authorized for troops in the field.
- fifth-grader — a student in the fifth grade of the American education system
- figurability — the quality of being figurable
- figuratively — of the nature of or involving a figure of speech, especially a metaphor; metaphorical and not literal: The word “head” has several figurative senses, as in “She's the head of the company.”. Synonyms: metaphorical, not literal, symbolic.
- figure skate — a shoe skate used in figure skating, especially one having a blade shorter than that of a racing skate, usually not extending beyond the toe or heel, and with notches or sawteeth on the curved forward edge.
- figure-skate — to take part in figure skating
- filler metal — metal supplied in the form of a welding rod, sometimes flux coated, melted by an arc or a flame into a joint between components to be joined
- filter paper — porous paper used in filtering.
- filtrability — the quality or extent of being filtrable
- finger paint — paint children apply with fingers
- finger-paint — a jellylike paint, used chiefly by children in painting, usually with their fingers.
- fire blanket — a large blanket-like piece of fire-resistant material such as fibreglass used in smothering a fire
- fire curtain — safety curtain.
- fire hydrant — a hydrant for use in extinguishing fires.
- fire station — a building in which firefighting apparatus and usually fire department personnel are housed; firehouse.
- fire watcher — a person who watches for fires, esp those caused by aerial bombardment
- firebreather — A performer who creates fireballs by breathing a fine mist of fuel over an open flame.
- firing party — a military detachment detailed to fire a salute at a funeral
- first estate — the first of the three estates: the clergy in France; the Lords Spiritual in England. Compare estate (def 5).
- first family — a family having the highest or one of the highest social ranks in a given place.
- 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 reader — the elected official of a church or society who conducts the services and meetings and reads from the writings of Mary Baker Eddy and the Scriptures.
- first-grader — a child in the first grade
- 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
- fissirostral — having a broad, deeply cleft beak or bill, as the swallows and goatsuckers.
- flat-grained — (of sawed lumber) having the annual rings at an angle of less than 45° with the broader surfaces.
- flatteringly — In a flattering manner.
- flavoprotein — an enzyme, containing riboflavin and linked chemically with a protein, active in the oxidation of foods in animal cells.
- flight arrow — an arrow having a conical or pyramidal head without barbs.
- 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.
- flowcharting — (computing) the design and construction of flowcharts.
- fluidextract — a liquid preparation, containing alcohol as a solvent or as a preservative, that contains in each cubic centimeter the medicinal activity of one gram of the crude drug in powdered form.
- fluorapatite — a crystalline mineral, Ca 5 (PO 4) 3 F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth.
- fluoridating — Present participle of fluoridate.