12-letter words containing i, a, t, r
- fluoridation — the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
- fluorinating — Present participle of fluorinate.
- fluorination — (chemistry) The introduction of fluorine into a compound by means of a chemical reaction.
- flusteration — (colloquial, dated) The act of flustering, or the state of being flustered.
- flying start — a start, as in sailboat racing, in which the entrants begin moving before reaching the starting line.
- foolhardiest — Superlative form of foolhardy.
- foot traffic — the wear and tear caused to a surface by people walking on it
- footdragging — the act or practice of acting with deliberate slowness
- for all time — forever, for eternity
- for instance — a case or occurrence of anything: fresh instances of oppression.
- for-instance — an instance or example: Give me a for-instance of what you mean.
- foraging ant — any of several ants, as army ants, that forage as part of a large group.
- fore-topsail — a topsail set on a foremast on a ship.
- foreordinate — foreordain.
- forestalling — Present participle of forestall.
- forestaysail — a triangular sail set on a forestay; the innermost headsail of a vessel.
- foretopsails — Plural form of foretopsail.
- foretriangle — the triangular area formed by the deck, foremast, and headstay of a sailing vessel
- forgeability — (metallurgy) The quality or degree of being forgeable.
- formula unit — (of an ionic compound that does not form molecules, as most salts) the chemical formula with the least number of elements out of the set of empirical formulas having the same proportion of ions as elements: NaCl is the formula unit for the ionic compound sodium chloride.
- formulations — Plural form of formulation.
- fornications — Plural form of fornication.
- fornicatress — (obsolete) A woman guilty of fornication.
- fort laramie — a city in SE Wyoming.
- fort madison — a city in SE Iowa, on the Mississippi.
- fort pulaski — Count Casimir [kaz-uh-meer] /ˈkæz əˌmɪər/ (Show IPA), 1748–79, Polish patriot; general in the American Revolutionary army.
- fort william — a port in W Ontario, in S Canada, on Lake Superior: created in 1970 by the merger of twin cities (Fort William and Port Arthur) and two adjoining townships.
- fortepianist — the player of a fortepiano
- fortified pa — a Māori hilltop dwelling with trenches and palisades for defensive occupation
- fotheringhay — a village in NE Northamptonshire, in E England, near Peterborough: Mary, Queen of Scots, imprisoned here and executed 1587.
- foundationer — a person supported by funds from a foundation, or serving as a member of a foundation
- fracastorius — a walled plain in the fourth quadrant of the face of the moon: about 60 miles (97 km) in diameter.
- fractionally — pertaining to fractions; comprising a part or the parts of a unit; constituting a fraction: fractional numbers.
- fractionated — Simple past tense and past participle of fractionate.
- fractionator — Chemistry. an apparatus for fractional distillation. Compare cracker (def 10).
- fragmentized — fragmented.
- franc-tireur — a sharpshooter in the French army.
- francescatti — Zino [zee-noh] /ˈzi noʊ/ (Show IPA), 1905–1991, French violinist.
- frangibility — The state or quality of being frangible.
- frankenstein — a person who creates a monster or a destructive agency that cannot be controlled or that brings about the creator's ruin.
- fraternalism — of or befitting a brother or brothers; brotherly.
- fraternality — Brotherliness.
- fraternising — to associate in a fraternal or friendly way.
- fraternities — Plural form of fraternity.
- fraternizing — Present participle of fraternize.
- free skating — a freestyle competition with no required elements, in which skaters perform an original program of jumps, spins, sequences, etc., to music of their choice.
- freestanding — (of sculpture or architectural elements) unattached to a supporting unit or background; standing alone.
- freight yard — a place on a rail network where freight trains are made up or broken up
- frenetically — In a frenetic manner.
- friction saw — a high-speed circular saw, usually toothless, that is used for cutting metals by using frictional heat to melt the material adjacent to it.