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Parameter 无 Modern Para Pə'Ræmitə N.参量,变量 N 1650s

单词 parameter
音标 [pə'ræmitə]
解释 n.参量,变量
红宝书
字源 parameter (n.)
1650s in geometry, from Modern Latin parameter (1630s), from Greek para- "beside, subsidiary" (see para- (1)) + metron "measure" (see meter (n.2)).
A geometry term until 1920s when it yielded sense of "measurable factor which helps to define a particular system" (1927). Common modern meaning (influenced by perimeter) of "boundary, limit, characteristic factor" is from 1950s. Related: Parametric.
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