12-letter words containing a, f, e, r, m
- fermat prime — (mathematics) A prime number of the form 2^2^n + 1. Any prime number of the form 2^n+1 must be a Fermat prime. Fermat conjectured in a letter to someone or other that all numbers 2^2^n+1 are prime, having noticed that this is true for n=0,1,2,3,4. No further Fermat primes are known; several have been factorised, and several more have been proved composite without finding explicit factorisations.
- fermentation — the act or process of fermenting.
- fermentative — tending to produce or undergo fermentation.
- fibroadenoma — a benign tumor originating from glandular tissue, as in the female breast.
- file manager — a program that organizes and arranges files in a computer
- filler metal — metal supplied in the form of a welding rod, sometimes flux coated, melted by an arc or a flame into a joint between components to be joined
- fire company — a company of firefighters.
- fire marshal — an official heading a bureau for the prevention or investigation of fires.
- fire-damaged — damaged by fire or in a fire
- flabelliform — Shaped like a fan; flabellate.
- flagelliform — long, slender, and flexible, like the lash of a whip.
- flame carbon — a carbon electrode containing metallic salts that colour the arc in a flame-arc light
- flameproofed — Simple past tense and past participle of flameproof.
- flameproofer — any agent which renders something flameproof
- flamethrower — a weapon, either mounted or portable, that sprays ignited incendiary fuel for some distance.
- flammiferous — flame-producing
- flash memory — Computers. a type of reprogrammable memory that retains information even with the power turned off.
- flimflammery — a trick or deception, especially a swindle or confidence game involving skillful persuasion or clever manipulation of the victim.
- 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-manage — to act as or in the manner of a floor manager.
- fluviomarine — of or formed by the combined action of river and sea.
- fly in amber — a strange relic or reminder of the past
- flyfisherman — Flyfisher.
- foot-lambert — a unit of luminance or photometric brightness, equal to the luminance of a surface emitting a luminous flux of one lumen per square foot, the luminance of a perfectly reflecting surface receiving an illumination of one foot-candle. Abbreviation: fL.
- for all time — forever, for eternity
- foraminifera — any chiefly marine protozoan of the sarcodinian order Foraminifera, typically having a linear, spiral, or concentric shell perforated by small holes or pores through which pseudopodia extend.
- forced march — any march that is longer than troops are accustomed to and maintained at a faster pace than usual, generally undertaken for a particular objective under emergency conditions.
- fore-topmast — the spar or section of a pole mast serving as the topmast of a foremast on a ship.
- foreadmonish — (rare, transitive) To admonish beforehand, or before the act or event.
- foreman-ship — a person in charge of a particular department, group of workers, etc., as in a factory or the like.
- foretopmasts — Plural form of foretopmast.
- forex market — short for
- formal cause — a person or thing that acts, happens, or exists in such a way that some specific thing happens as a result; the producer of an effect: You have been the cause of much anxiety. What was the cause of the accident?
- formal dress — clothing for elegant or solemn occasions
- formaldehyde — a colorless, toxic, potentially carcinogenic, water-soluble gas, CH 2 O, having a suffocating odor, usually derived from methyl alcohol by oxidation: used chiefly in aqueous solution, as a disinfectant and preservative, and in the manufacture of various resins and plastics.
- formalizable — Capable of being formalized.
- formularized — Simple past tense and past participle of formularize.
- formularizer — One who formularizes.
- formularizes — Third-person singular simple present indicative form of formularize.
- fort laramie — a city in SE Wyoming.
- fragmentally — fragmentary.
- fragmentized — fragmented.
- frame buffer — (hardware) Part of a video system in which an image is stored, pixel by pixel and which is used to refresh a raster image. The term "video memory" suggests a fairly static display whereas a frame buffer holds one frame from a sequence of frames forming a moving image. Frame buffers are found in frame grabbers and time base correction systems, for example.
- franked mail — official mail sent by members of Congress, the vice president, and other authorized officials. Compare frank1 (defs 6–9).
- fraternalism — of or befitting a brother or brothers; brotherly.
- free company — a band of free companions.
- freeze frame — an optical effect or technique in which a single frame of film is reprinted in a continuous series, which when shown gives the effect of a still photograph.
- freeze-frame — an optical effect or technique in which a single frame of film is reprinted in a continuous series, which when shown gives the effect of a still photograph.
- freshmanship — the state of being a freshman; the period during which a student is considered to be a freshman
- from day one — from the very beginning