residual volume

noun

Medical Definition of residual volume

: the volume of air still remaining in the lungs after the most forcible expiration possible and amounting usually to 60 to 100 cubic inches (980 to 1640 cubic centimeters)

called also residual air

— compare supplemental air

Learn More about residual volume

Cite this Entry

“Residual volume.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/residual%20volume. Accessed 22 Jan. 2021.

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