aneroid

adjective
an·er·oid | \ˈa-nə-ˌrȯid \

Definition of aneroid 

: using no liquid specifically : operating by the effect of outside air pressure on a diaphragm forming one wall of an evacuated container aneroid barometer

First Known Use of aneroid

circa 1842, in the meaning defined above

History and Etymology for aneroid

French anéroïde, from Greek a- + Late Greek nēron water, from Greek, neuter of nearos, nēros fresh; akin to Greek neos new — more at new

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The first known use of aneroid was circa 1842

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aneroid

adjective
an·er·oid | \ˈan-ə-ˌrȯid \

Medical Definition of aneroid 

: containing no liquid or actuated without the use of liquid an aneroid manometer

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