19-letter words containing a, p, e, r, i
- theoretical physics — abstract use of physics
- therapeutic cloning — the permitted creation of cloned human tissues for surgical transplant
- three-point landing — an aircraft landing in which the two wheels of the main landing gear and the tail or nose wheel touch the ground simultaneously.
- tidal power station — a power station where the energy of flowing water is converted into electricity
- tiglath-pileser iii — died 727 b.c, king of Assyria 745–727.
- time sharing option — (operating system) (TSO) System software from IBM that provides time-sharing on an IBM mainframe running in an MVS environment.
- to tear a strip off — If you tear a strip off someone or if you tear them off a strip, you speak to them angrily and criticize them severely.
- travelling expenses — expenses that are paid to someone, for example, by their employer, for the costs they need to travel
- trisodium phosphate — sodium phosphate (def 3).
- tropical depression — an atmospheric low-pressure system originating in the tropics, specifically, a tropical cyclone in which the maximum sustained wind speed is 38 miles per hour (62 kilometers per hour) or less.
- tuamotu archipelago — a group of about 80 coral islands in the S Pacific, in French Polynesia. Pop: 15 973 (2002; including the Gambier Islands). Area: 860 sq km (332 sq miles)
- tussock caterpillar — the larva of a tussock moth.
- typographical error — an error in printed or typewritten matter resulting from striking the improper key of a keyboard, from mechanical failure, or the like.
- ultracrepidarianism — noting or pertaining to a person who criticizes, judges, or gives advice outside the area of his or her expertise: The play provides a classic, simplistic portrayal of an ultracrepidarian mother-in-law.
- underrepresentation — the act of representing.
- united presbyterian — a member of the United Presbyterian Church of North America, founded in Pittsburgh in 1858 by a union of two Presbyterian groups.
- universal recipient — a person with blood type AB, able to receive blood from a person of any blood type but able to donate blood only to a person with the same blood type
- university hospital — a hospital that is affiliated with a university. University hospitals provide clinical education and training to future and current doctors, nurses, and other health professionals, in addition to delivering medical care to patients
- unnatural practices — acts which are deemed to be contrary to expected standards of human behaviour
- upper carboniferous — Pennsylvanian (defs 2, 4).
- vapor recovery unit — A vapor recovery unit is a system for recovering vapors from inside sealed crude oil or condensate tanks, with a scrubber (= a device for removing unwanted substances) and compressor (= a device that raises pressure).
- vicariate apostolic — a district under the jurisdiction of a vicar apostolic.
- video tape recorder — a device for recording television programs on magnetic tape for delayed transmission or for storage.
- war of independence — American Revolution.
- waterglass painting — stereochromy.
- whispering campaign — the organized spreading of insinuations or rumors to destroy the reputation of a person, organization, etc.
- whorfian hypothesis — Sapir-Whorf hypothesis.
- william shakespeare — William ("the Bard"; "the Bard of Avon") 1564–1616, English poet and dramatist.
- wireless local loop — (communications) (WLL, radio in the loop, RITL, fixed-radio access, FRA) Connecting subscribers to the public switched telephone network (PSTN) using radio signals instead of copper wires. The wireless link may be all or part of the connection between the subscriber and the switch. WLL includes cordless access systems, proprietary fixed radio access and fixed cellular systems.
- wireless telegraphy — Now Rare. radiotelegraphy.
- xenotransplantation — xenograft.
- zenithal projection — a type of map projection in which part of the earth's surface is projected onto a plane tangential to it, either at one of the poles (polar zenithal), at the equator (equatorial zenithal), or between (oblique zenithal)