The Collaborative International Dictionary of English v.0.48:

Scent \Scent\, v. t. [imp. & p. p. Scented; p. pr. & vb. n.
   Scenting.] [Originally sent, fr. F. sentir to feel, to
   smell. See Sense.]
   1. To perceive by the olfactory organs; to smell; as, to
      scent game, as a hound does.
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            Methinks I scent the morning air.     --Shak.
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   2. To imbue or fill with odor; to perfume.
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            Balm from a silver box distilled around,
            Shall all bedew the roots, and scent the sacred
            ground.                               --Dryden.
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The Collaborative International Dictionary of English v.0.48:

Scent \Scent\, v. i.
   1. To have a smell. [Obs.]
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            Thunderbolts . . . do scent strongly of brimstone.
                                                  --Holland.
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   2. To hunt animals by means of the sense of smell.
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The Collaborative International Dictionary of English v.0.48:

Scent \Scent\, n.
   1. That which, issuing from a body, affects the olfactory
      organs of animals; odor; smell; as, the scent of an
      orange, or of a rose; the scent of musk.
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            With lavish hand diffuses scents ambrosial. --Prior.
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   2. Specifically, the odor left by an animal on the ground in
      passing over it; as, dogs find or lose the scent; hence,
      course of pursuit; track of discovery.
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            He gained the observations of innumerable ages, and
            traveled upon the same scent into Ethiopia. --Sir W.
                                                  Temple.
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   3. The power of smelling; the sense of smell; as, a hound of
      nice scent; to divert the scent. --I. Watts.
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WordNet (r) 3.0 (2006):

scent
    n 1: a distinctive odor that is pleasant [syn: aroma,
         fragrance, perfume, scent]
    2: an odor left in passing by which a person or animal can be
       traced
    3: any property detected by the olfactory system [syn:
       olfactory property, smell, aroma, odor, odour,
       scent]
    v 1: cause to smell or be smelly [syn: odorize, odourise,
         scent] [ant: deodorise, deodorize, deodourise]
    2: catch the scent of; get wind of; "The dog nosed out the
       drugs" [syn: scent, nose, wind]
    3: apply perfume to; "She perfumes herself every day" [syn:
       perfume, scent]