12-letter words containing a, f, e, r
- army officer — a person in the army who holds a position of authority, responsibility and duty, especially one who holds a commission
- arseniferous — Lb geology Containing or producing arsenic.
- artzybasheff — Boris Mikhailovich [bawr-is mi-kahy-luh-vich,, bor-;; Russian buh-ryees myi-khahy-luh-vyich] /ˈbɔr ɪs mɪˈkaɪ lə vɪtʃ,, ˈbɒr-;; Russian bʌˈryis myɪˈxaɪ lə vyɪtʃ/ (Show IPA), 1899–1965, U.S. illustrator and writer, born in Russia.
- auger effect — the spontaneous emission of an electron instead of a photon by an excited ion as a result of a vacancy being filled in an inner electron shell
- average life — the average time that an unstable particle or nucleus survives before it decays.
- baffle board — a plate or mechanical device designed to restrain or regulate the flow of a fluid, the emission of light or sound, or the distribution of sound, esp in a loudspeaker or microphone
- bairnsfather — Bruce. 1888–1959, British cartoonist, born in India: best known for his cartoons of the war in the trenches during World War I
- balkan frame — an overhead frame, fastened to a bed, from which a splinted, fractured leg or arm is suspended and held in traction.
- ball of fire — a very lively person
- barley field — a piece of land cleared of trees and undergrowth, usually enclosed with a fence or hedge and used for growing barley
- barrack life — the experiences, activities, etc that are characteristic of a soldier's time spent dwelling in a barracks
- barrier reef — a long narrow coral reef near and lying parallel to the shore, separated from it by deep water
- bashkirtseff — Marie, original name Marya Konstantinovna Bashkirtseva. 1858–84, Russian painter and diarist who wrote in French, noted esp for her Journal (1887)
- bastard file — a file of the commercial grade of coarseness between coarse and second-cut.
- battery farm — a farm that uses batteries for raising poultry
- battery fire — the firing of a battery of weapons
- battlefronts — Plural form of battlefront.
- beaufort sea — part of the Arctic Ocean off the N coast of North America
- beautifuller — (obsolete) Comparative form of beautiful.
- beaver falls — a city in W Pennsylvania.
- beaver fever — an infectious disease caused by drinking water that has been contaminated by wildlife
- beef extract — a soluble paste of beef or beef blood extracts.
- beefheartian — of or recalling the music of Captain Beefheart and his Magic Band, an avant-garde rock/blues band (1966–1982); incorporating strange rhythms, free jazz elements, bizarre lyrics, and growling vocals
- bella figura — a good impression; fine appearance
- ben franklin — Aretha [uh-ree-thuh] /əˈri θə/ (Show IPA), born 1942, U.S. singer.
- benefactress — a female benefactor
- bill of fare — The bill of fare at a restaurant is a list of the food for a meal from which you may choose what you want to eat.
- bird fancier — a person who keeps, breeds, or sells birds
- birth father — a biological mother (birth mother) or biological father (birth father) a biological parent.
- black forest — wooded mountain region in SW Germany
- black-figure — pertaining to or designating a style of vase painting developed in Greece in the 7th and 6th centuries b.c., chiefly characterized by silhouetted figures painted in black slip on a red clay body, details incised into the design, and a two-dimensional structure of form and space.
- bladder fern — a small fern, Cystoperis fragilis, with graceful lanceolate leaves, typically growing on limestone rocks and walls
- bluesnarfing — the practice of using one Bluetooth-enabled mobile phone to steal contact details, ring tones, images, etc from another
- braced frame — a building frame employing a heavy, braced framework of solid girts mortised into solid posts the full height of the frame, with studs one story high filling the interstices.
- bracket foot — a corner foot of a chest or the like joining the sides in a concave line.
- brain freeze — Also called ice-cream headache. a pain in the temples and forehead brought on by quickly consuming very cold food or drink.
- brassfounder — a person who makes things from brass
- brazen-faced — shameless or impudent
- break of day — dawn; daybreak.
- breed of cat — type; sort; variety: The new airplane is a completely different breed of cat from any that has been designed before.
- buffalo robe — a carriage robe or rug made of the skin of the bison, dressed with the hair on
- buffaloberry — any shrub of the genus Shepherdia native to North America
- buffel grass — grass used for pasture in Africa, India, and Australia
- buffer state — A buffer state is a peaceful country situated between two or more larger hostile countries.
- buy the farm — a tract of land, usually with a house, barn, silo, etc., on which crops and often livestock are raised for livelihood.
- by reason of — If one thing happens by reason of another, it happens because of it.
- c beautifier — (cb) A Unix tool for reformatting C source code.
- cafe curtain — a short curtain suspended directly downward from a series of rings sliding on a horizontal rod so as to cover the lower and sometimes upper portions of a window.
- calorie-free — containing no calories
- cam follower — the slider or roller in contact with the cam that transmits the movement dictated by the cam profile