| 释义 |
hy·drom·e·ter
\hīˈdräməd.ə(r)\ noun
Etymology: hydr- + -meter
: an instrument for measuring the specific gravity of a liquid commonly consisting of a thin glass or metal tube graduated to indicate either specific gravities or percentages of solution constituents and weighted so that it floats upright — compare alcoholometer, nicholson's hydrometer |