12-letter words containing r, o, t, a, u
- 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.
- fluoridating — Present participle of fluoridate.
- fluoridation — the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
- fluorinating — Present participle of fluorinate.
- fluorination — (chemistry) The introduction of fluorine into a compound by means of a chemical reaction.
- flusteration — (colloquial, dated) The act of flustering, or the state of being flustered.
- flutterboard — a kickboard.
- forequarters — the forward end of half of a carcass, as of beef or lamb.
- formula unit — (of an ionic compound that does not form molecules, as most salts) the chemical formula with the least number of elements out of the set of empirical formulas having the same proportion of ions as elements: NaCl is the formula unit for the ionic compound sodium chloride.
- formulations — Plural form of formulation.
- fort pulaski — Count Casimir [kaz-uh-meer] /ˈkæz əˌmɪər/ (Show IPA), 1748–79, Polish patriot; general in the American Revolutionary army.
- fortran-plus — Fortran for the DAP parallel machine, implements many Fortran 90 features.
- foundationer — a person supported by funds from a foundation, or serving as a member of a foundation
- four old cat — three old cat played with four batters.
- fourth grade — school year: age 9-10
- fourth-class — of, relating to, or designated as a class next below third, as for mailing, shipping, etc.
- fracastorius — a walled plain in the fourth quadrant of the face of the moon: about 60 miles (97 km) in diameter.
- fructosamine — (organic compound) A chemical compound that can be considered the result of a reaction between fructose and ammonia or an amine (with a molecule of water being released).
- frumentation — (in ancient Rome) a public donation of grain, often given to citizens during times of unease
- frustrations — Plural form of frustration.
- fudge factor — any variable component added to an experiment, plan, or the like that can be manipulated to allow leeway for error.
- full frontal — showing the entire front: full-frontal nudity.
- full-frontal — showing the entire front: full-frontal nudity.
- funambulator — a tightrope-walker; a funambulist
- gastrulation — the formation of a gastrula.
- gauge theory — a type of theory of elementary particles designed to explain the strong, weak, and electromagnetic interactions in terms of exchange of virtual particles
- gesticulator — to make or use gestures, especially in an animated or excited manner with or instead of speech.
- glutaredoxin — (enzyme) Any of a family of small redox enzymes that use glutathione as a cofactor.
- goddaughters — Plural form of goddaughter.
- good-natured — having or showing a pleasant, kindly disposition; amiable: a warm, good-natured person.
- gran turismo — (of an automobile) certified as conforming to the specifications, as fuel capacity and engine displacement, for a class of standard automobiles (Gran Turismo) qualified to engage in various types of competitions. Abbreviation: GTO.
- granulations — Plural form of granulation.
- granuloblast — an immature granulocyte.
- granulocytes — Plural form of granulocyte.
- granulocytic — Of, or pertaining to, granulocytes.
- gratuitously — given, done, bestowed, or obtained without charge or payment; free; voluntary.
- gratulations — a feeling of joy.
- grossularite — a mineral, calcium aluminum garnet, Ca 3 Al 2 Si 3 O 12 , occurring in gray-white to pinkish crystals.
- ground alert — the state of waiting for orders in or near combat airplanes ready to take to the air at once.
- ground fault — the momentary, usually accidental, grounding of a conducting wire.
- ground plate — Electricity. a metal plate for making a ground connection to the earth.
- ground staff — The people who are paid to maintain a sports ground are called the ground staff.
- ground state — the state of least energy of a particle, as an atom, or of a system of particles.
- ground track — the path on the earth's surface below an aircraft, missile, rocket, or spacecraft.
- ground water — the water beneath the surface of the ground, consisting largely of surface water that has seeped down: the source of water in springs and wells.
- gustave dore — (Paul) Gustave [pawl gy-stav] /pɔl güˈstav/ (Show IPA), 1832?–83, French painter, illustrator, and sculptor.
- gut reaction — instinctive response
- gutturonasal — articulated in the back of the mouth and given resonance in the nasal cavity, as the sound represented by (ng) in (ring).
- gynantherous — having the stamens converted into pistils by the action of frost, disease, or insects.
- hallucinator — One whose judgment and acts are affected by hallucinations; one who errs on account of his hallucinations.