英语词汇micrometer的起源、历史背景-英语词源词典

词汇	micrometer
词源	micrometer n. 1660s, from micro- + -meter. Originally a telescope attachment for measuring small angular distances; from 1884 as a craftsman's tool for extreme accuracy in fine measurements. Related: Micrometry; micrometric. Entries linking to micrometer micro- word-forming element meaning "small in size or extent, microscopic; magnifying;" in science indicating a unit one millionth of the unit it is prefixed to; from Latinized form of mikros, Attic form of Greek smikros "small, little, petty, trivial, slight," perhaps from PIE smika, from root smik- "small" (source also of Old High German smahi "littleness"), but Beekes thinks it a Pre-Greek word. -meter word-forming element meaning "device or instrument for measuring;" commonly -ometer, occasionally -imeter; from French -mètre, from Greek metron "a measure," from PIE root *me- (2) "to measure." updated on January 10, 2019
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micrometer n.