'Phrenograph' definitions:

Definition of 'Phrenograph'

From: GCIDE

Phrenograph \Phre"no*graph\ (fr[=e]"n[-o]*gr[.a]f), n. [Gr. frh`n, freno`s, the midriff + -graph.] (Physiol.) An instrument for registering the movements of the diaphragm, or midriff, in respiration. [1913 Webster]