Aneroid \An"e*roid\, a. [Gr. 'a priv. + nhro`s wet, moist +
-oid: cf. F. an['e]ro["i]de.]
Containing no liquid; -- said of a kind of barometer.
Aneroid barometer, a barometer the action of which depends
on the varying pressure of the atmosphere upon the elastic
top of a metallic box (shaped like a watch) from which the
air has been exhausted. An index shows the variation of
pressure.
Source: Webster's Revised Unabridged Dictionary (1913)
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