22-letter words containing p, i, n, t, u, r
- transition temperature — Physics. a temperature at which a substance undergoes some abrupt change in its properties, as when it passes from the normal to the superconducting state.
- transposing instrument — a musical instrument played at a pitch different from that indicated in the score.
- turbo-propeller engine — a jet engine with a turbine-driven propeller that produces the principal thrust, augmented by the thrust of the jet exhaust.
- unconditioned response — a reflex action innately elicited by a stimulus without the intervention of any learning process
- unemployment insurance — a government program that provides a limited number of payments to eligible workers who are involuntarily unemployed.
- 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
- unsaturated production — Unsaturated production is the production of smaller, unsaturated hydrocarbons from saturated hydrocarbons, for example producing alkenes such as ethane and propene.
- upright vacuum cleaner — a vacuum cleaner that is tall rather than wide
- 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.