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A smelling organ; a nose. [R.]

Of, pertaining to, or connected with, the sense of smell; as, the olfactory nerves; the olfactory cells. 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…

the ethmoid bone. Ethmoid bone (Anat.), a bone of complicated structure through which the olfactory nerves pass out of the cranium and over which they are largely distributed.

. -antis, p.pr. of fragrare to emit a smell of fragrance: cf. OF. fragrant. Affecting the olfactory nerves agreeably; sweet of smell; odorous; having or emitting an agreeable perfume. Fragrant the fertile earth After soft showers. Milton.

prominent part of the face or anterior extremity of the head containing the nostrils and olfactory cavities; the olfactory organ. See Nostril, and Olfactory organ under Olfactory.

The sense by which the impressions made on the olfactory organs by the odorous particles in the atmosphere are perceived.

See Olfactory, a.

The olfactory organ of some Mollusca. It is connected with the organ of respiration.

The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain.

Og or pertaining to the nose or olfactory organs.

The division of the brain in front of the prosencephalon, consisting of the two olfactory lobes from which the olfactory nerves arise.

y are usually retractile, and often transversely furrowed or plicate, and are regarded as olfactory organs. Called also dorsal tentacles. See Illust. under Pygobranchia, and Opisthobranchia.

To perceive by the olfactory organs; to smell; as, to scent game, as a hound does. Methinks I scent the morning air. Shak.

To perceive by the olfactory nerves, or organs of smell; to have a sensation of, excited through the nasal organs when affected by the appropriate materials or qualities; to obtain the scent of; as, to smell a rose; to smell perfumes.

f an oval or sherical head surmounting a short pedicel. It is generally supposed to be an olfactory organ.

rbinate; -- applied to the thin, plicated, bony or cartilaginous plates which support the olfactory and mucous membranes of the nasal chambers.