Zȳ-mŏm'e-ter or Zȳ'mo-sim'e-ter, n.

n. [From Gr. ζύμη, ferment, ζύμωσις, fermentation, and μέτρον, measure; Fr. zymosimètre.] An instrument for ascertaining the degree of fermentation occasioned by the mixture of different liquids, and the degree of heat which they acquire in fermentation. [Written also zumometer, zumosimeter.]