• (n.) An instrument for registering the movements of the diaphragm, or midriff, in respiration.
Phre'no·graph noun [ Greek ..., ..., the migriff + -graph .] (Physiol.) An instrument for registering the movements of the diaphragm, or midriff, in respiration. 
Type: Term Pronunciation: fren′ō-graf Definitions: 1. An instrument for recording graphically the movements of the diaphragm.
phrenograph 1. An instrument for recording the movements of the diaphragm in respiration. 2. A phrenological description or “chart“ of a person’s mental characteristics. Inter-related cross references, directly or indirectly, involving the 'mind, mental' word units: anima-; anxi-...