'Eriometer' definitions:

Definition of 'Eriometer'

From: GCIDE

Eriometer \E`ri*om"e*ter\, n. [Gr. ? wool + -meter.] (Opt.) An instrument for measuring the diameters of minute particles or fibers, from the size of the colored rings produced by the diffraction of the light in which the objects are viewed. [1913 Webster]