'Diagometer' definitions:

Definition of 'Diagometer'

From: GCIDE

Diagometer \Di`a*gom"e*ter\, n. [Gr. ? to transmit + -meter.] A sort of electroscope, invented by Rousseau, in which the dry pile is employed to measure the amount of electricity transmitted by different bodies, or to determine their conducting power. --Nichol. [1913 Webster]