an·er·oid
noun/ˈænərɔɪd/
/ˈænərɔɪd/
- a type of barometer that measures air pressure by the action of air on the elastic lid of a box containing a vacuum
无液型：一种气压计，通过空气在装有真空的盒子的弹性盖上的作用来测量气压。 Word Originmid 19th cent.: coined in French from Greek a- ‘without’ + nēros ‘water’.