22-letter words containing a, l, i, t, r, u
- the edinburgh festival — an arts festival held in Edinburgh in August
- thermonuclear reaction — a nuclear-fusion reaction that takes place between the nuclei of a gas, especially hydrogen, heated to a temperature of several million degrees.
- time complex simulator — (simulation) (Tcsim) Complex arithmetic version of Tsim. Contact: ZOLA Technologies.
- transformational rules — rules that specify in purely syntactic terms a method by which theorems may be derived from the axioms of a formal system
- trichlorofluoromethane — chlorotrifluoromethane.
- trifluorochloromethane — chlorotrifluoromethane.
- unconventional warfare — warfare that is conducted within enemy lines through guerrilla tactics or subversion, usually supported at least in part by external forces.
- unemployment insurance — a government program that provides a limited number of payments to eligible workers who are involuntarily unemployed.
- unidirectional current — direct current
- unilateral disarmament — disarmament, especially nuclear disarmament, carried out by one state on its own
- unitarian universalism — a North American liberal religious denomination in the Judeo-Christian heritage, formed in 1961 by the merger of the Unitarians, organized in 1825, and the Universalists, organized in 1793.
- united empire loyalist — any of the American colonists who settled in Canada during or after the War of American Independence because of loyalty to the British Crown
- universal postal union — an international organization, formed in Bern, Switzerland (1875), that administers and regulates international postal service. Abbreviation: UPU.
- universal product code — a bar code that indicates price, product classification, etc., and can be read electronically, as at checkout counters in supermarkets. Abbreviation: UPC.
- unprofessional conduct — activity that is contrary to the accepted code of conduct of a profession
- upright vacuum cleaner — a vacuum cleaner that is tall rather than wide
- urban district council — a council of an urban district that, in conjunction with a county council, has responsibilities for local government issues
- van der waals equation — an equation of state relating the pressure, volume, and absolute temperature of a gas, taking into account the finite size of the molecules and the attractive force between them.
- varicella zoster virus — a type of herpesvirus that causes chickenpox and shingles.
- voluntary organization — an organization that is composed of or functions with the aid of volunteers and which provides aid or services to individuals, groups or countries
- wardour street english — affectedly archaic speech or writing
- white australia policy — an unofficial term for an immigration policy designed to restrict the entry of non-White people into Australia
- zero population growth — the maintenance of a population at a constant level by limiting the number of live births to that needed to replace the existing population.