An"e*roid (#), a. [Gr. priv. + wet, moist + -oid: cf. F. an'eroide.]
Containing no liquid; -- said of 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.
© Webster 1913.
An"e*roid, n.
An aneroid barometer.
© Webster 1913.