What is "chyometer"

Chyometer \Chy*om"e*ter\, n. [Gr. ? to pour + -meter.] (Chem.) An instrument for measuring liquids. It consists of a piston moving in a tube in which is contained the liquid, the quantity expelled being indicated by the graduation upon the piston rod.

n. (context chemistry English) An instrument for measure liquids, consisting of a tube with a piston inside.