15-letter words containing a, c, o
- force de frappe — a military strike force, esp the independent nuclear strike force of France
- 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
- formation dance — any dance in which a number of couples form a certain arrangement, such as two facing lines or a circle, and perform a series of figures within or based on that arrangement
- forward echelon — (in a military operation) the troops and officers in a combat zone or in a position to engage the enemy.
- four-ball match — a match, scored by holes, between two pairs of players, in which the four players tee off and the partners alternate in hitting the pair's ball having the better lie off the tee.
- fourth official — In football, the fourth official is an official who assists the referee and assistant referees from the side of the pitch.
- fovea centralis — a small pit or depression at the back of the retina forming the point of sharpest vision.
- fractional note — a banknote in a denomination smaller than the standard unit of currency
- fractionalizing — Present participle of fractionalize.
- franco-american — an American of French or French-Canadian descent.
- french marigold — a composite plant, Tagetes patula, of Mexico, having yellow flowers with red markings.
- french togoland — a former United Nations Trust Territory in W Africa, administered by France (1946–60), now the independent republic of Togo
- friend at court — a friend in a position of influence or power who may advance one's interests, especially a helpful person who is close to someone in authority.
- frontal cyclone — any extratropical cyclone associated with a front: the most common cyclonic storm.
- fructifications — Plural form of fructification.
- functionability — functional (def 3).
- functional food — a food containing additives which provide extra nutritional value
- functional load — the relative frequency of occurrence of words that are differentiated in one and the same position by only one distinctive feature. In English, the opposition of voiced and voiceless th has a low functional load being used only to distinguish such pairs as ether and either, or wreath and wreathe.
- functional unit — A subsystem of the central processing unit of a computer. E.g. arithmetic and logic unit, memory address register, barrel shifter, register file.
- functionalistic — of or relating to a function or functions: functional difficulties in the administration.
- functionalities — of or relating to a function or functions: functional difficulties in the administration.
- fusospirochetal — Relating to fusospirochetes.
- gaelic football — an Irish game played with 15 players on each side and goals resembling rugby posts with a net on the bottom part. Players are allowed to kick, punch, and bounce the ball and attempt to get it over the bar or in the net
- gale-force wind — a wind of force seven to ten on the Beaufort scale or from 45 to 90 kilometres per hour
- galvanic couple — voltaic couple.
- galvanomagnetic — of or relating to the creation of an electromagnetic field within a conductor, as a metal, or a semiconductor through which an electric current is passed.
- garbage collect — garbage collection
- gas oil contact — In a reservoir, gas oil contact is the area containing a mix of gas and oil, below which there is mainly oil and above which there is mainly gas.
- gastric balloon — an inflatable rubber bag placed in the stomach to reduce its capacity as an aid to losing weight
- gastronomically — the art or science of good eating.
- gated community — a group of houses or apartment buildings protected by gates, walls, or other security measures.
- general officer — an officer ranking above colonel.
- geneva protocol — the agreement in 1925 to ban the use of asphyxiating, poisonous, or other gases in war. It does not ban the development or manufacture of such gases
- geodemographics — the study and grouping of the people in a geographical area according to socioeconomic criteria, esp for market research
- geomagnetically — In a geomagnetic way; through geomagnetism.
- geometric ratio — the ratio of consecutive terms in a geometric progression.
- geostrophically — By means of, or in terms of, geostrophy.
- geotectonically — from a geotectonic point of view
- get one's cards — to be told to leave one's employment
- gigantopithecus — a genus of extinct ape of southern Asia existing during the Pliocene and Pleistocene epochs, known only from very large fossil jaws and teeth and believed to be perhaps the biggest hominoid that ever lived.
- gila woodpecker — a dull-colored woodpecker, Melanerpes uropygialis, of the southwestern U.S. and Mexico.
- glass harmonica — a musical instrument composed of a set of graduated, revolving glass bowls, the rims of which are moistened and set in vibration by friction from the fingertips.
- glen canyon dam — Adam Clayton, Jr. 1908–72, U.S. clergyman, politician, and civil-rights leader: congressman 1945–67, 1969–71.
- globe artichoke — artichoke (defs 1, 2).
- glossographical — relating to glossography
- glucuronic acid — Biochemistry. an acid, C 6 H 10 O 7 , formed by the oxidation of glucose, found combined with other products of metabolism in the blood and urine.
- glycogenic acid — gluconic acid.
- glycuronic acid — glucuronic acid.