15-letter words containing a, s, t, r, o
- false buckthorn — a spiny shrub or small tree, Bumelia lanuginosa, of the sapodilla family, native to the southern U.S., having gummy, milky sap and white, bell-shaped flowers and yielding a hard, light-brown wood.
- false miterwort — foamflower.
- familiarisation — Alternative spelling of familiarization.
- fantasmagorical — Alternative form of phantasmagorical.
- fauntleroy suit — a formal outfit for a boy composed of a hip-length jacket and knee-length pants, often in black velvet, and a wide, lacy collar and cuffs, usually worn with a broad sash at the waist and sometimes a large, loose bow at the neck, popular in the late 19th century.
- feast or famine — characterized by alternating, extremely high and low degrees of prosperity, success, volume of business, etc.: artists who lead a feast-or-famine life.
- feast-or-famine — characterized by alternating, extremely high and low degrees of prosperity, success, volume of business, etc.: artists who lead a feast-or-famine life.
- ferroelasticity — (physics) A phenomenon, analogous to ferromagnetism and ferroelectricity, in which spontaneous strain arises within a material.
- ferrous sulfate — a bluish-green, crystalline, saline-tasting, water-soluble heptahydrated solid, FeSO 4 ⋅7H 2 O, used chiefly in the manufacture of other iron salts, in water purification, fertilizer, inks, pigments, tanning, photography, and in medicine in the treatment of anemia.
- fibrocartilages — Plural form of fibrocartilage.
- fiesta de toros — a bullfight; corrida.
- first world war — World War I.
- first-day cover — a cover marked so as to indicate that it was mailed on the first day of issue of the stamp it bears and from one of the cities at which the stamp was issued on that day.
- fission reactor — a nuclear reactor in which a fission reaction takes place
- five-star hotel — a top-quality hotel offering exceptional luxury
- flatter oneself — to hold the self-satisfying or self-deluding belief (that)
- flirtatiousness — The quality of being flirtatious.
- floating screed — Building Trades. screed (def 3).
- floods of tears — If you say that someone was in floods of tears or in a flood of tears, you are emphasizing that they were crying with great intensity because they were very upset.
- floral tributes — bunches or arrangements of flowers left as a memorial at the site of a fatal incident
- fluoridationist — One who supports the addition of fluoride to the public water supply.
- fluorophosphate — a salt or ester of a fluorophosphoric acid.
- foolscap quarto — a book size, 63⁄4 by 81⁄2 inches (foolscap quarto)
- for pity's sake — You can say for pity's sake to add emphasis to what you are saying, especially when you are annoyed or upset.
- for the sake of — for the good of
- for their pains — You say that something was all you got for your pains when you are mentioning the disappointing result of situation into which you put a lot of work or effort.
- forecastle deck — a partial weather deck on top of a forecastle superstructure; topgallant forecastle.
- forecastle head — the extreme fore part of a forecastle superstructure.
- forest of arden — a region of N Warwickshire, part of a former forest: scene of Shakespeare's As You Like It
- formation rules — the set of rules that specify the syntax of a formal system; the algorithm that generates the well-formed formulae
- foster daughter — a girl raised like one's own daughter, though not such by birth or adoption.
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- free atmosphere — the part of the atmosphere that lies above the frictional influence of the earth's surface.
- free soil party — a former U.S. political party (1848–56) that opposed the extension of slavery in the Territories not yet admitted to statehood.
- freestone state — Connecticut (used as a nickname).
- front-page news — a story printed on the first page of a newspaper
- fructifications — Plural form of fructification.
- fusospirochetal — Relating to fusospirochetes.
- gallant soldier — a South American plant, Galinsoga parviflora, widely distributed as a weed, having small daisy-like flowers surrounded by silvery scales: family Asteraceae (composites)
- garboard strake — the first strake on each side of a keel.
- gardening tools — tools used for gardening, such as a trowel, spade, rake, etc
- garrison troops — troops who maintain and guard a military base or fortified place
- gas thermometer — a device for measuring temperature by observing the change in either pressure or volume of an enclosed gas.
- gastric balloon — an inflatable rubber bag placed in the stomach to reduce its capacity as an aid to losing weight
- gastroenteritis — inflammation of the stomach and intestines.
- gastronomically — the art or science of good eating.
- generalisations — Plural form of generalisation.
- generalizations — Plural form of generalization.
- geostrophically — By means of, or in terms of, geostrophy.
- gesta romanorum — a popular collection of tales in Latin with moral applications, compiled in the late 13th century as a manual for preachers