Meaning of BYPASS in English

transcription, транскрипция: [ ˈbaɪpɑ:s ]

noun Also written by-pass (Health and Fitness) A permanent alternative pathway for a blood vessel, artery, etc. (especially near the heart or brain), created by transplanting a vessel from elsewhere in the body or inserting an artificial one. Also, the operation by which this is achieved or the artificial device that is inserted. Etymology: A figurative use of the word bypass, which was regularly used in the sixties and seventies for an alternative road built to route traffic round a bottleneck such as a large town; the medical bypass, too, is often created to avoid an obstruction or constriction in the existing network. History and Usage: The art of bypass surgery was developed during the sixties and seventies and was becoming routine by the eighties. By an interesting reversal of linguistic roles, new roads were often called arterials rather than bypasses in the eighties, and the medical sense of bypass showed signs of becoming the dominant meaning of the word. It is often used attributively, in bypass operation, bypass surgery, etc. Sir Robin Day was yesterday 'progressing very nicely' after his heart by-pass operation in a London hospital. News of the World 3 Mar. 1985, p. 2 The findings may have far-reaching implications...offering patients a low-risk alternative to cholesterol-lowering drugs, bypass operations and angioplasty, a technique in which clogged arteries are opened with a tiny balloon that presses plaque against the artery walls. New York Times 14 Nov. 1989, section C, p. 1

English colloquial dictionary, new words.      Английский разговорный словарь - новые слова.