midcapacity

noun
mid·​ca·​pac·​i·​ty | \ -kə-ˈpas-ət-ē How to pronounce midcapacity (audio) \
plural midcapacities

Medical Definition of midcapacity

: the pulmonary volume when the lungs are in the state of contraction characteristic of the end of a normal quiet exhalation equal to the sum of the volumes occupied by the residual volume, supplemental air, and dead space