Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Of, relating to, used in, or affecting respiration.

from The Century Dictionary.

  • Pertaining to or serving for respiration.
  • Internal, the phrenic nerve.
  • An orifice, generally at the end of a tubular process, through which some aquatic larvæ, or larvæ living in putrescent matter, under the skin of animals, etc., obtain air.

from the GNU version of the Collaborative International Dictionary of English.

  • adjective (Physiol.) Of or pertaining to respiration; serving for respiration
  • adjective (Physiol.) See 2d Note under Food, n., 1.
  • adjective (Zoöl.) the branched internal gill of certain holothurians.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Relating to respiration; breathing.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective pertaining to respiration

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

respire +‎ -atory

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