15-letter words containing r, a, s, c
- eta abstraction — eta conversion
- eureka stockade — a violent incident in Ballarat, Australia, in 1854 between gold miners and the military, as a result of which the miners won their democratic rights in the state parliament
- ewing's sarcoma — a form of malignant bone tumour most commonly found in children and young people
- ex-servicewoman — a woman who has served in the army, navy, or air force
- exchange server — Microsoft Exchange
- excursion train — a train that is laid on for a special occasion such as a sports or cultural event
- extralinguistic — Outside the realm of linguistics.
- extrinsicalness — Quality of being extrinsical.
- fabric softener — a substance added to fabrics during laundering to make them puffier and softer.
- facile princeps — an obvious leader
- factor analysis — the use of one of several methods for reducing a set of variables to a lesser number of new variables, each of which is a function of one or more of the original variables.
- faculty advisor — a member of the faculty who gives advice to students
- 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 decretals — the Pseudo-Isidorian documents.
- false pregnancy — physiological signs of pregnancy without conception; pseudocyesis.
- false pretences — fraud, deception
- fantasmagorical — Alternative form of phantasmagorical.
- featherstitched — Simple past tense and past participle of featherstitch.
- ferroelasticity — (physics) A phenomenon, analogous to ferromagnetism and ferroelectricity, in which spontaneous strain arises within a material.
- fibrocartilages — Plural form of fibrocartilage.
- fideicommissary — the recipient of a fideicommissum.
- fiduciary issue — an issue of banknotes not backed by gold
- fire resistance — the amount of resistance of a material or construction to fire.
- first secretary — The First Secretary of the Welsh Assembly is the leader of the ruling party.
- 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.
- fischer-dieskau — Dietrich [dee-trik;; German dee-trikh] /ˈdi trɪk;; German ˈdi trɪx/ (Show IPA), 1925–2012, German baritone.
- fission reactor — a nuclear reactor in which a fission reaction takes place
- fitness tracker — a wearable electronic device or a software application that monitors one's physical fitness and daily physical activity.
- flatbed scanner — a type of optical scanner having a flat, stationary surface on which a page is scanned by a moving head.
- flavourdynamics — as in quantum flavour dynamics, a mathematical model used to describe the interaction of flavoured particles (weak force) through the exchange of intermediate vector bosons
- fleet insurance — Fleet insurance is a type of insurance contract that applies to a number of vehicles.
- floating screed — Building Trades. screed (def 3).
- flood insurance — insurance covering loss or damage to property arising from a flood, flood tide, or the like.
- fluorochemicals — Plural form of fluorochemical.
- foolscap quarto — a book size, 63⁄4 by 81⁄2 inches (foolscap quarto)
- forecastle deck — a partial weather deck on top of a forecastle superstructure; topgallant forecastle.
- forecastle head — the extreme fore part of a forecastle superstructure.
- formal calculus — an uninterpreted symbolic system whose syntax is precisely defined, and on which a relation of deducibility is defined in purely syntactic terms; a logistic system
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- fragrance strip — a folded, usually sealed strip on a page or card, impregnated with fragrance that is released when pulled or torn open: The magazine is full of fragrance strips in the advertisements.
- francis bushman — Francis X(avier) 1883–1966, U.S. film actor.
- francis turbine — a water turbine designed to produce high flow from a low head of pressure: used esp in hydroelectric power generation
- freight charges — the price charged for conveying goods by freight
- french guianese — an overseas department of France, on the NE coast of South America: formerly a French colony. 35,135 sq. mi. (91,000 sq. km). Capital: Cayenne.
- french tamarisk — a shrub or small tree, Tamarix gallica, of the Mediterranean region, having bluish foliage and white or pinkish flowers.
- french-speaking — able to speak French
- friedrichshafen — a city in Baden-Württemberg, S Germany, on Lake Constance.
- frisian carving — geometrical incised carving.
- fructifications — Plural form of fructification.
- funeral service — ceremony at a burial or cremation