英语词汇sigma的起源、历史背景-英语词源词典

词汇	sigma
词源	sigma 18th letter of the Greek alphabet, corresponding to Latin S; the name is a metathesis of Hebrew samekh. In uncial writing, shaped like an S or a C. Entries linking to sigma sigmatism n. 1888, "lisping difficulty in pronouncing 'S,'" from combining form of sigma + -ism. As "use or recurrence of 'S'" from 1889. Also sigmatismus. sigmoid adj. "shaped like the Greek letter sigma" in one of its forms, hence either "shaped like a C" (1660s) or "shaped like an S" (1786). From sigma (q.v.) + -oid. Especially of the flexure of the colon (1891). Related: Sigmoidal; sigmoidally. updated on October 07, 2022
随便看	implied implode implore implosion implosive imply impolite impoliteness impolitic imponderable import importance important importation importer importunate importune importunity impose imposing imposition impossibilism impossibility impossible impost

英语词源词典收录了45867条英语词源词条，基本涵盖了全部常用英语词汇的起源、历史，是研究英语词汇或通过词源学英语的必备工具。

sigma