Word Study
respiratory
CIDE DICTIONARY
respiratory, a.
Of or pertaining to respiration; serving for respiration; as, the respiratory organs; respiratory nerves; the respiratory function; respiratory changes. [1913 Webster]
Respiratory foods. (Physiol.) See 2d Note under Food , n. , 1. -- Respiratory tree (Zoöl.), the branched internal gill of certain holothurians.
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