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2 definitions found
 for olfactory organ
From The Collaborative International Dictionary of English v.0.48 :

  Olfactory \Ol*fac"to*ry\, a. [L. olfactus, p. p. of olfacere to
     smell; olere to have a smell + facere to make. See Odor,
     and Fact.] (Physiol.)
     Of, pertaining to, or connected with, the sense of smell; as,
     the olfactory nerves; the olfactory cells.
     [1913 Webster]
     Olfactory organ (Anat.), an organ for smelling. In
        vertebrates the olfactory organs are more or less
        complicated sacs, situated in the front part of the head
        and lined with epithelium innervated by the olfactory (or
        first cranial) nerves, and sensitive to odoriferous
        particles conveyed to it in the air or in water.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  olfactory organ
      n 1: the organ of smell and entrance to the respiratory tract;
           the prominent part of the face of man or other mammals; "he
           has a cold in the nose" [syn: nose, olfactory organ]

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