20-letter words containing p, a, s, f, i
- span of apprehension — the maximum number of objects that can be correctly assessed after a brief presentation
- spanish west african — of or relating to the former Spanish overseas territory of Spanish West Africa (now the overseas provinces of Ifni and Spanish Sahara) or its inhabitants
- specific conductance — conductivity (def 2).
- specific performance — (especially in the sale of land) literal compliance with one's contractual promises pursuant to a judicial mandate.
- specific-conductance — conductivity (def 2).
- spiral of archimedes — a curve that is the locus of a point that moves outward with uniform speed along a vector, beginning at the origin, while the vector rotates about the origin with uniform angular velocity. Equation (in polar coordinates): r = aθ.
- spirits of hartshorn — a colorless, pungent, suffocating, aqueous solution of about 28.5 percent ammonia gas: used chiefly as a detergent, for removing stains and extracting certain vegetable coloring agents, and in the manufacture of ammonium salts.
- spread like wildfire — If something, especially news or a rumour, spreads like wildfire, it spreads extremely quickly.
- square of opposition — a diagrammatic representation of the opposition of categorical propositions.
- staff of aesculapius — a representation of a forked staff with an entwining serpent, used as a symbol of the medical profession and as the insignia of the American Medical Association and other medical organizations. Compare caduceus (def 2).
- the legal profession — the profession of law
- third-party software — software created by programmers or publishers independent of the manufacturer of the hardware for which it is intended.
- transformation point — a temperature at which the transformation of one microconstituent to another begins or ends during heating or cooling.
- upper yosemite falls — a section of Yosemite Falls in central California, in the Yosemite National Park that is 436 m (1430 ft) high
- with a pinch of salt — without wholly believing; sceptically