(physiology) Oxygen uptake per heartbeat at rest.

(surgery) A surgical procedure whereby small portions of the lung, called bulla, are removed. Bulla are large areas (> 1 cm in diameter) in the lung filled with oxygen-depleted air

plural of v-tach

A structure of interwoven branches and twigs plastered with mud, clay or dung, used in the construction of dwellings, especially as infill in a half-timbered wall