U
IPA: / ˈy /
Uranium
Uranium
(Chiefly British) Of or appropriate to the upper classes especially in language use.
Liczba mnoga: Us
The 21st letter of the English alphabet, and the 20th in the ancient Roman, in which it was identical with V. U has various sounds, as in the pronunciation of the English words truth, bull, duke, busy, bury.
The file extension for a binary file that has been translated into ASCII format using uuencode. Also called: . uud. See also ASCII, binary file, uuencode. Compare .uue.
Utulei · Utumea East · Utumea West · U-turn · Utzon · .uu · UUCP · .uud · uudecode · .uue
The file extension for a file that has been decoded from ASCII format back into binary format using uudecode. See also ASCII, binary file, uudecode.
Liczba mnoga: /usrs
A directory in a computer system that contains subdirectories owned or maintained by individual users of the computer system. These subdirectories can contain files and additional subdirectories. Typically, /usr directories are used in UNIX systems and can be found on many FTP sites. See also FTP site.
USNR · USO · USP · Uspallata Pass · usquebaugh · /usr · USRT · USS · Ussher · USSR · Ussuri
Liczba mnoga: U locks
ulnar nerve · ulnar vein · ulnas · ulnoradial · ulo · U lock · uloid · ulosis · ulotomy · ulotrichan · ulotrichous
Liczba mnoga: U Thants
Burmese diplomat; see Thant, U.
uterotomy · uterotubal · uterovaginal · uterus · UTF-8 · U Thant · Uther · Uthman · Uthman I · UTI · Utica
US military reconnaissance airplane, used in secret flights over the USSR from 1956 to photograph military installations. In 1960 a U-2 was shot down over the USSR and the pilot, Gary Powers, was captured and imprisoned. He was exchanged for a US-held Soviet agent two years later.
The U-2 affair led to the cancellation of a proposed meeting in Moscow between President Eisenhower and Soviet leader Khrushchev, precipitating a greatly increased Soviet arms spending in the 1960s and 1970s. In 1962 U-2 flights revealed the construction of Soviet missile bases in Cuba.
Designed by Richard Bissell, the U-2 flew higher (21,000 m/70,000 ft) and further (3,500 km/2,200 mi) than any previous plane.
Liczba mnoga: U-boats
German submarine. The term was used in both world wars when U-boat attacks posed a great threat to Allied shipping.
Liczba mnoga: U-bolts
Liczba mnoga: U-shaped valleys
Another term for a glacial trough, a valley formed by a glacier.