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Definition of Galactometer
1. n. An instrument for ascertaining the quality of milk (i.e., its richness in cream) by determining its specific gravity; a lactometer.
Medical Definition of Galactometer
1. A form of hydrometer for determining the specific gravity of milk as an indication of its fat content. Synonym: lactometer. Origin: Galacto-+ G. Metron, measure (05 Mar 2000)