GNU Collaborative International Dictionary of English

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Found 2 definitions 

  1.       

    Aneroid , a. [Gr. ἀ priv. + νηρός wet, moist + -oid: cf. F. anéroïde.] Containing no liquid; -- said of a kind of barometer.
    1913 Webster
    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.
    1913 Webster
    
      
    
  2.       

    aneroid, n. An aneroid barometer.
    1913 Webster

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