An instrument for recording the movements of the thorax or chest wall during respiration.

plural of pneumatograph

plural of pneumatologist

One versed in pneumatology.

(chemistry) A piece of laboratory apparatus, consisting of a vessel filled with liquid (generally water or mercury), used for collecting gases.

(marine biology) A sac or other structure containing air and used for flotation by a marine organism, chiefly used in reference to those of kelps and siphonophores.

plural of pneumatocyst

Of or pertaining to pneumatology.

plural of pneumatogram

(physiology) A tracing of the respiratory movements, obtained by a pneumatograph or stethograph.