18-letter words containing p, r, o, f, a, n
- repeat performance — sth done again
- seafloor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
- self-preoccupation — the state of being preoccupied.
- software backplane — (programming, tool) A CASE framework from Atherton.
- spirits of ammonia — a 10% solution of ammonia in alcohol
- unfair competition — acts done by a seller to confuse or deceive the public with intent to acquire a larger portion of the market, as by cutting prices below cost, misleading advertising, selling a spurious product under a false identity, etc.
- vermiform appendix — a narrow, blind tube protruding from the cecum, having no known useful function, in humans being 3 to 4 inches (8 to 10 cm) long and situated in the lower right-hand part of the abdomen.
- wild passionflower — the maypop, Passiflora incarnata.