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thermo-hydrometer
thermo-hydrometer n.
Brit. 
/ˌθəːmə(ʊ)hʌɪˈdrɒmᵻtə/
, /ˌθəːmə(ʊ)hʌɪˈdrɒmᵻtə/U.S. /ˌθərmoʊˌhaɪˈdrɑmədər/
a combined instrument showing the temperature and density of a liquid./ˌθərmoʊˌhaɪˈdrɑmədər/ΘΚΠ
the world > matter > properties of materials > temperature > measurement of temperature > [noun] > instrument > for temperature and density of a liquid
thermo-hydrometer1894
1894 Brit. Jrnl. Photogr. 41 43 Mr. W. E. Hales exhibited Fletcher's Thermo-hydrometer.
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