aneroid /ˈænəɹɔɪd/noun 2adjective 1forms 1 noun2 •An aneroid barometer.I may mention that our aneroid shows us that in the continual incline which we have ascended since we abandoned our canoes we have risen to no less than three thousand feet above sea-level. — 1912 •An aneroid calorimeter. adjective1 •Not using or containing fluidAn evacuated bellows and mechanical linkage operates an aneroid barometer. formsaneroids
