Dictionary

hydrometer

noun hy·drom·e·ter \hī-ˈdrä-mə-tər\

Definition of HYDROMETER

:  an instrument for determining the specific gravity of a liquid (as battery acid or an alcohol solution) and hence its strength
hy·dro·met·ric \ˌhī-drə-ˈme-trik\ adjective

First Known Use of HYDROMETER

1675

hydrometer

noun hy·drom·e·ter \hī-ˈdräm-ət-ər\   (Medical Dictionary)

Medical Definition of HYDROMETER

:  an instrument for determining the specific gravity of a liquid (as an alcohol or saline solution) and hence its strength
hy·drom·e·try \-ə-trē\ noun, plural hy·drom·e·tries

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