19-letter words containing a, n, t, i, f
- transformer station — a station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or the reverse using transformers
- transitional relief — a form of tax relief, designed to smooth large changes in liability, which operates by restricting the proportion by which liability may change per year, both upwards and downwards
- translation of axes — the process of replacing the axes in a Cartesian coordinate system with a new set of axes, parallel to the first, used to write equations of curves not centered about the origin.
- trifacial neuralgia — tic douloureux.
- tropic of capricorn — Astronomy. the Goat, a zodiacal constellation between Sagittarius and Aquarius.
- ultrahigh frequency — any frequency between 300 and 3000 megahertz. Abbreviation: UHF, uhf.
- unit of measurement — physical quantity
- unorganized ferment — ferment (def 2).
- valley of the kings — a valley on the west bank of the Nile near the site of Thebes: the necropolis of many of the kings and queens of the 18th and 19th dynasties of ancient Egypt, c1350–c1200 b.c.
- wage-push inflation — an inflationary trend caused by wage increases that in turn cause rises in production costs and prices.
- white-water rafting — White-water rafting is the activity of riding on a raft over rough, dangerous parts of a fast-flowing river.
- whorfian hypothesis — Sapir-Whorf hypothesis.
- xenon tetrafluoride — a colorless, crystalline compound, XeF 4 , prepared by heating a gaseous mixture of fluorine and xenon.
- yellowtail flounder — a righteyed flounder, Limanda ferruginea, inhabiting waters along the Atlantic coast of North America, having a yellowish tail fin and rusty-red spots on the body: once commercially important, now greatly reduced in number.
- yellowtail kingfish — a large carangid game fish, Seriola grandis, of S Australian waters
- zone of illuviation — B horizon.