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Relating to respiration.
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res·pi·ra·to·ry 'res-p(ə-)rə-.tōr-ē, ri-'spī-rə-, -.tȯr- adj
1) of or relating to respiration <\respiratory function> <\respiratory diseases>
2) serving for or functioning in respiration <\respiratory organs>
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res·pi·ra·to·ry (resґpər-ə-tor″e) [re- + L. spirare to breathe] pertaining to respiration. Called also pneumatic.Medical dictionary. 2011.