Re‐spir″a‐to‐ry (r?‐sp?r″?‐t?‐r? or r?s″p?‐r?–), a.(Physiol.) Of or pertaining to respiration; serving for respiration; as, the respiratory organs; respiratory nerves; the respiratory function; respiratory changes.
Respiratory foods. (Physiol.) See 2d Note under Food, n., 1. — Respiratory tree(Zoöl.), the branched internal gill of certain holothurians.