12-letter words containing r, o, f, l
- flavorlessly — In a flavorless way.
- fleet prison — (formerly) a London prison, esp used for holding debtors
- flesh colour — of a yellowish-pink to yellowish-grey colour roughly that of the skin of a white person
- flickermouse — Alternative form of flittermouse.
- flight arrow — an arrow having a conical or pyramidal head without barbs.
- flightworthy — being in proper physical or mechanical condition for safe flight; airworthy: a flightworthy spacecraft.
- flindermouse — (obsolete) A bat (the mammal).
- flip-flopper — a person who makes a complete change of policy, opinion, etc
- flittermouse — bat2 (def 1).
- float around — A rumour or idea that is floating around is often heard or talked about.
- float bridge — a bridge, as from a pier to a boat, floating at one end and hinged at the other to permit loading and unloading at any level of water.
- 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.
- floating rib — one member of the two lowest pairs of ribs, which are attached neither to the sternum nor to the cartilages of other ribs.
- floor broker — a member of a stock or commodity exchange who executes orders on the floor of the exchange for other brokers.
- floor leader — the majority leader or minority leader in either the Senate or the House of Representatives.
- 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.
- floor polish — a substance used to polish floors
- floor sample — an appliance, piece of furniture, or other article of merchandise that has been used for display or demonstration and is usually offered at a reduced price.
- floor trader — a member of a stock or commodity exchange who executes orders on the floor of the exchange for his or her own account.
- floor-filler — a dance recording that is so catchy and popular that everyone in the place where it is played wants to dance
- floor-length — extending to the floor: a floor-length skirt.
- floor-manage — to act as or in the manner of a floor manager.
- flooring saw — a saw having a curved edge.
- floorwalkers — Plural form of floorwalker.
- flop forging — forging of both sides of a piece from the same die, the sides being identical.
- floppy drive — disk drive
- floriculture — the cultivation of flowers or flowering plants, especially for ornamental purposes.
- florida keys — chain of small islands extending southwest from the S tip of Fla.
- florida moss — Spanish moss.
- florida room — a sunroom.
- flour beetle — any of several brown darkling beetles, especially of the genus Tribolium, that infest, breed in, feed on, and often pollute flour, stored grain, and other stored produce.
- flour shaker — a container, often with a perforated top, from which flour is shaken
- flour sifter — a container in which flour is sifted
- flourishment — The act or state of flourishing.
- 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
- flow pattern — The flow pattern is the way in which fluids move through a reactor.
- 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.
- flower power — Flower power is an old-fashioned way of referring to hippies and the culture associated with hippies in the late 1960s and early 1970s.
- flowerpecker — any of numerous small, arboreal, usually brightly colored oscine birds of the family Dicaeidae, of southeastern Asia and Australia.
- fluoranthene — (organic compound) A polycyclic aromatic hydrocarbon consisting of a benzene ring attached to each of the rings of a naphthalene molecule; it is carcinogenic, and is a product of incomplete combustion.
- fluorapatite — a crystalline mineral, Ca 5 (PO 4) 3 F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth.
- 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.
- fluoridating — Present participle of fluoridate.
- fluoridation — the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
- fluorimeters — Plural form of fluorimeter.