英语词汇indicator的起源、历史背景-英语词源词典

词汇	indicator
词源	indicator n. 1660s, "that which indicates or points out," from Late Latin indicator, agent noun from indicare "to point out, show" (see indication). As a finger muscle, from 1690s. As a steam-cylinder's pressure gauge, 1839. As a device on a motor vehicle to signal intention to change direction, 1932. Entries linking to indicator indication n. early 15c., "a sign, that which indicates," from Latin indicationem (nominative indicatio) "an indicating; valuation," noun of action from past participle stem of indicare "point out, show," from in- "into, in, on, upon" (from PIE root en "in") + dicare "proclaim" (from PIE root deik- "to show," also "pronounce solemnly," and see diction). updated on November 10, 2015
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indicator n.