17-letter words containing ia
- the pennsylvanian — the Pennsylvanian period or rock system, equivalent to the Upper Carboniferous of Europe
- thermal radiation — electromagnetic radiation emitted by all matter above a temperature of absolute zero because of the thermal motion of atomic particles.
- thuringian forest — a forested mountain region in central Germany: a resort area.
- torricellian tube — a vertical glass tube partly evacuated and partly filled with mercury, the height of which is used as a measure of atmospheric pressure
- trade association — an association of people or companies in a particular business or trade, organized to promote their common interests.
- triangular matrix — a square matrix in which either all the entries above the principal diagonal, or all the entries below the principal diagonal, are zero.
- trifoliate orange — a spiny, Chinese orange tree, Poncirus trifoliata, used as a stock in grafting and for hedges.
- triskaidekaphobia — fear or a phobia concerning the number 13.
- trobriand islands — a group of coral islands in the Solomon Sea, north of the E part of New Guinea: part of Papua New Guinea. Area: about 440 sq km (170 sq miles)
- trucial sheikdoms — an independent federation in E Arabia, formed in 1971, now comprising seven emirates on the S coast (formerly, Pirate Coast or Trucial Coast) of the Persian Gulf, formerly under British protection: Abu Dhabi, Dubai, Sharjah, Ajman, Umm al-Qaiwain, Ras al-Khaimah (joined 1972), and Fujairah. About 32,300 sq. mi. (83,657 sq. km). Capital: Abu Dhabi. Abbreviation: U.A.E.
- twelve patriarchs — any of the sons of Jacob ((the twelve patriarchs),) from whom the tribes of Israel were descended.
- uniformitarianism — supporting, conforming to, or derived from a theory or doctrine about uniformity, especially on the subject of geology.
- unofficial strike — a strike that is not approved by the strikers' trade union
- unsubstantiatable — to establish by proof or competent evidence: to substantiate a charge.
- utopian socialism — (sometimes initial capital letter) an economic system based on the premise that if capital voluntarily surrendered its ownership of the means of production to the state or the workers, unemployment and poverty would be abolished.
- valetudinarianism — the state, condition, or habits of a valetudinarian.
- variable-geometry — denoting an aircraft in which the wings are hinged to give the variable aspect ratio colloquially known as a swing-wing
- vice-presidential — relating to a person who ranks immediately below the chief executive or head of state of a republic
- victoriano huerta — Victoriano [beek-taw-ryah-naw] /ˌbik tɔˈryɑ nɔ/ (Show IPA), 1854–1916, Mexican general: provisional president of Mexico 1913–14.
- vila nova de gaia — a city in NW Portugal.
- visible radiation — electromagnetic radiation that causes the sensation of sight; light. It has wavelengths between about 380 and 780 nanometres
- wage differential — the difference in wages between workers with different skills in the same industry or between those with comparable skills in different industries or localities
- wage negotiations — talks between workers and employers over rates of pay
- waianae mountains — a mountain range in W Oahu, Hawaii. Highest peak, Mount Kaala, 4025 feet (1228 meters).
- western australia — a state in W Australia. 975,920 sq. mi. (2,527,635 sq. km). Capital: Perth.
- william shoemaker — William Lee ("Willie") 1931–2003, U.S. jockey.
- williams syndrome — an abnormality in the genes involved in calcium metabolism, resulting in learning difficulties
- xiao hinggan ling — mountain range in NE China running parallel to the Amur River: highest peak, 4,665 ft (1,422 m)