12-letter words containing a, e, f
- power factor — (in an electrical circuit) the ratio of the power dissipated to the product of the input volts times amps
- prairie fowl — prairie chicken.
- prairie wolf — coyote (def 1).
- preamplifier — a device in the amplifier circuit of a radio or phonograph that increases the strength of a weak signal for detection and further amplification.
- prebreakfast — occurring before breakfast, of or pertaining to the period before breakfast
- prefabricate — to fabricate or construct beforehand.
- prefectorial — of, relating to, or characteristic of a prefect: prefectorial powers.
- preferential — of, relating to, or of the nature of preference: preferential policies.
- prefinancing — financing arranged in advance
- prefloration — the internal arrangement of a flower-bud's petals and sepals before it opens
- prefoliation — the arrangement of leaves within a vegetative bud
- preformation — previous formation.
- preformative — a prefixture in Semitic languages
- preformatted — the shape and size of a book as determined by the number of times the original sheet has been folded to form the leaves. Compare duodecimo, folio (def 2), octavo, quarto.
- preformulate — to describe an active pharmaceutical ingredient chemically
- prime factor — any number in the set of prime numbers that is also a factor of a given integer
- private life — the social or family life or personal relationships of an individual, esp of a person in the public eye, such as a politician or celebrity
- pro-suffrage — the right to vote, especially in a political election.
- professional — following an occupation as a means of livelihood or for gain: a professional builder.
- professorate — the office or the period of service of a professor.
- professorial — a teacher of the highest academic rank in a college or university, who has been awarded the title Professor in a particular branch of learning; a full professor: a professor of Spanish literature.
- profile drag — the sum of the surface friction drag and the form drag for a body moving subsonically through a fluid
- profile plan — a diagrammatic fore-and-aft elevation of the hull of a vessel, showing bow and buttock lines, stations, water lines, diagonals, decks, bulwarks, etc.
- proofreading — correction of text
- protest flag — a flag hoisted by a racing yacht to advise the judges of a violation of the rules by another yacht.
- pudding-face — a human face that is big and fat and resembles a pudding
- puffa jacket — a warm quilted and padded jacket
- putrefaction — the act or process of putrefying; the anaerobic decomposition of organic matter by bacteria and fungi that results in obnoxiously odorous products; rotting.
- putrefactive — the act or process of putrefying; the anaerobic decomposition of organic matter by bacteria and fungi that results in obnoxiously odorous products; rotting.
- quantifiable — to determine, indicate, or express the quantity of.
- quarry-faced — rock-faced.
- quarterfinal — of or relating to the contest or round preceding the semifinal one.
- quarterstaff — a former English weapon consisting of a stout pole 6 to 8 feet (1.8 to 2.4 meters) long, tipped with iron.
- quasi-feudal — of, relating to, or of the nature of a fief or fee: a feudal estate.
- rabbit fever — tularemia.
- rabbitfishes — Plural form of rabbitfish.
- radical left — the faction representing extreme left-wing political views, often Marxist or Maoist in ideology.
- raman effect — the change in wavelength of light scattered while passing through a transparent medium, the collection of new wavelengths (Raman spectrum) being characteristic of the scattering medium and differing from the fluorescent spectrum in being much less intense and in being unrelated to an absorption band of the medium.
- range finder — any of various instruments for determining the distance from the observer to a particular object, as for sighting a gun or adjusting the focus of a camera.
- rangefinding — the act or process of determining the distance of an object from the observer
- rat-infested — (of a place or vessel) that has many rats
- rate of flow — the rate at which a liquid or other substance flows through a particular channel, pipe etc
- reclassified — to classify anew.
- red bandfish — a fish, Cepola haastii, found on the inner continental shelf around New Zealand: family Cepolidae
- red goatfish — a goatfish, Mullus auratus.
- reflationary — economy: relating to reflation
- reflectogram — an image of an under-drawing or image taken from beneath the surface of paint in a work of art
- reflex angle — an angle greater than 180° and less than 360°.
- reform flask — an English salt-glazed stoneware flask of the early 19th century formed as an effigy of one of the figures connected with the Reform Bill of 1832.
- reformatting — the shape and size of a book as determined by the number of times the original sheet has been folded to form the leaves. Compare duodecimo, folio (def 2), octavo, quarto.