Mixer

来自Big Physics

wiktionary

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mix +‎  -er


etymonline

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mixer (n.)

1610s, "worker who mixes," agent noun from mix (v.). As a type of machine that mixes, from 1876. Sense of "person" as regards sociability (with a qualifying adjective) is by 1896; the meaning "troublemaker" is attested by 1938; the sense of "social gathering to mingle and get acquainted" dates from 1916.