12-letter words containing c, o, f
- 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 cornet — a commander of burgher troops called up in time of war or in an emergency, esp during the 19th century
- field hockey — a game played on a rectangular field having a netted goal at each end, in which two teams of 11 players each compete in driving a small leather-covered ball into the other's goal, each player being equipped with a stick having a curved end or blade that is flat on one side and rounded on the other.
- fifth column — a group of people who act traitorously and subversively out of a secret sympathy with an enemy of their country.
- fifty-second — next after the fifty-first; being the ordinal number for 52.
- film company — a company dedicated to the making of motion pictures
- film-coating — Film-coating is a process in which a tablet, capsule, or pellet is covered by a thin layer of film to protect it or make it easier to swallow.
- final notice — last warning before legal action
- fire company — a company of firefighters.
- fire control — technical and sometimes automatic supervision of artillery or naval gunfire on a target, as for range, elevation, etc.
- first cousin — cousin (def 1).
- first school — A first school is a school for children aged between five and eight or nine.
- fish factory — a factory where fish is processed
- fissicostate — having divided or separated ribs
- fixed-income — gaining or yielding a more or less uniform rate of income.
- flag officer — a naval officer above the rank of captain, as a fleet admiral, admiral, vice-admiral, rear admiral, or commodore, who is entitled to display a flag indicating his or her rank.
- flame carbon — a carbon electrode containing metallic salts that colour the arc in a flame-arc light
- flesh colour — of a yellowish-pink to yellowish-grey colour roughly that of the skin of a white person
- flickermouse — Alternative form of flittermouse.
- float collar — A float collar is a part near the bottom of the casing string which catches the bottom plug and top plug, and which prevents mud from entering the casing.
- float switch — an electric switch controlled by a conductor floating in a liquid.
- flocculating — Present participle of flocculate.
- flocculation — to form into flocculent masses.
- floor pocket — one of several metal boxes placed backstage in the floor (floor pocket) or wall of a theater and containing jacks for electric cables used in lighting units.
- floriculture — the cultivation of flowers or flowering plants, especially for ornamental purposes.
- flow breccia — a volcanic breccia that has solidified from a lava flow.
- flow control — (communications, protocol) The collection of techniques used in serial communications to stop the sender sending data until the receiver can accept it. This may be either software flow control or hardware flow control. The receiver typically has a fixed size buffer into which received data is written as soon as it is received. When the amount of buffered data exceeds a "high water mark", the receiver will signal to the transmitter to stop transmitting until the process reading the data has read sufficient data from the buffer that it has reached its "low water mark", at which point the receiver signals to the transmitter to resume transmission.
- flow country — an area of moorland and peat bogs in northern Scotland known for its wildlife, now partly afforested
- flowcharting — (computing) the design and construction of flowcharts.
- flower child — (especially in the 1960s) a young person, especially a hippie, rejecting conventional society and advocating love, peace, and simple, idealistic values.
- flowerpecker — any of numerous small, arboreal, usually brightly colored oscine birds of the family Dicaeidae, of southeastern Asia and Australia.
- fluctuations — Plural form of fluctuation.
- fluoresceine — Alternative spelling of fluorescein.
- fluorescence — the emission of radiation, especially of visible light, by a substance during exposure to external radiation, as light or x-rays. Compare phosphorescence (def 1).
- fluorescents — Plural form of fluorescent.
- fluorimetric — Alternative form of fluorometric.
- fluorocarbon — any of a class of compounds produced by substituting fluorine for hydrogen in a hydrocarbon, and characterized by great chemical stability: used chiefly as a lubricant, refrigerant, fire extinguishing agent, and in industrial and other applications in which chemical, electrical, flame, and heat resistance is essential; banned as an aerosol propellant in the U.S. because of concern about ozone layer depletion.
- fluorochrome — any of a group of fluorescent dyes used to label biological material.
- fluorometric — Of, pertaining to, or measured using fluorometry.
- fluoroscoped — Simple past tense and past participle of fluoroscope.
- fluoroscopes — Plural form of fluoroscope.
- fluoroscopic — of or relating to the fluoroscope or fluoroscopy.
- fluorouracil — a pyrimidine analog, C 4 H 3 FN 2 O 2 , used in the treatment of certain cancers.
- fluosilicate — a salt of fluosilicic acid.
- fly the coop — an enclosure, cage, or pen, usually with bars or wires, in which fowls or other small animals are confined for fattening, transportation, etc.
- fm cyclotron — a type of cyclotron that synchronizes its accelerating voltage with particle velocity in order to compensate for the relativistic mass increase of the particle as it approaches the speed of light.
- foam plastic — a kind of light cellular plastic made by creating bubbles of gas in the liquid material and solidifying it: often used as an insulator
- focal length — the distance from a focal point of a lens or mirror to the corresponding principal plane. Symbol: f.
- focalization — (optics) Putting into focus.
- focus puller — the member of a camera crew who adjusts the focus of the lens as the camera is tracked in or out