adj.
Pronunciation: ' a-n ə - ˌ ro ̇ id
Function: adjective
Etymology: French anéroïde, from Greek a- + Late Greek n ē ron water, from Greek, neuter of nearos, n ē ros fresh; akin to Greek neos new ― more at NEW
Date: circa 1848
: using no liquid specifically : operating by the effect of outside air pressure on a diaphragm forming one wall of an evacuated container < aneroid barometer>