17-letter words containing f, o, r, t, i, u
- stannous fluoride — a white, crystalline powder, SnF 2 , slightly soluble in water: used as a source of fluorine in the prevention of dental caries, especially as a toothpaste additive.
- statue of liberty — a large copper statue, on Liberty Island, in New York harbor, depicting a woman holding a burning torch: designed by F. A. Bartholdi and presented to the U.S. by France; unveiled 1886.
- sufficient reason — the principle that nothing happens by pure chance, but that an explanation must always be available
- the carboniferous — the Carboniferous period or rock system
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- thiosulfuric acid — an acid, H 2 S 2 O 3 , that may be regarded as sulfuric acid with one oxygen atom replaced by sulfur.
- thuringian forest — a forested mountain region in central Germany: a resort area.
- transfer function — The transfer function of a circuit is the ratio of the response to the input.
- trapdoor function — a function defined from data by means of a mathematical procedure in such a way that it is easy to obtain the function when the data are known, but when the procedure and data are not known it becomes very difficult to determine the original data: used in cryptography, where the data are the characters of the plain text, or message, and the trapdoor function is the cryptogram.
- troilus butterfly — spicebush swallowtail.
- unconformity trap — An unconformity trap is a hydrocarbon trap where the closure is made by an unconformity (= a formation of rock layers which represents a gap in the geological record).
- under the sign of — during that portion of the year when the sun is passing through and thus subject to the influence of (a specified sign of the zodiac)
- uniformitarianism — supporting, conforming to, or derived from a theory or doctrine about uniformity, especially on the subject of geology.
- unify corporation — (company) Developers of the Unify relational database. At one time, before Sybase, they were a competitor of Oracle, et al.
- unity of interest — the equal interest in property held by joint tenants
- unofficial strike — a strike that is not approved by the strikers' trade union
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.
- writ of execution — a writ ordering that a judgment be enforced