What is "butyrometer"

Butyrometer \Bu`ty*rom"e*ter\, n. [L. butyrum butter + -meter.] An instrument for determining the amount of fatty matter or butter contained in a sample of milk.

n. Any of several devices used to estimate the proportion of butterfat in milk

Butyrometer is a measuring instrument used to measure fat content in milk or milk products in general. The method used in the determination is Gerber's method as invented by Swiss chemist Niklaus Gerber.

thumbnail|Butyrometer thumbnail|Schematic of a Butyrometer