olfactory tractn.

Brit.

/ɒlˌfakt(ə)rɪ ˈtrakt/, U.S.

/ɑlˌfækt(ə)ri ˈtræk(t)/,

/oʊlˌfækt(ə)ri ˈtræk(t)/

Origin: Formed within English, by compounding. Etymons: olfactory adj., tract n.³

Etymology: < olfactory adj. + tract n.³ Compare earlier olfactory nerve n.

Anatomy and Zoology.

A stalk of nerve fibres connecting the olfactory bulb to the remainder of the cerebrum.

ΚΠ

1834 Philos. Trans. (Royal Soc.) 124 360 The fissure also which separates the olfactory tract from the superimposed cerebral mass, instead of being inferior, as in the Rodentia, is here lateral.

1921 F. Tilney & H. A. Riley Form & Functions Central Nerv. Syst. xxxiv. 613 The mammillary body serves as a relay station in the olfactory tract.

1997 G. S. Helfman et al. Diversity of Fishes xvii. 298/2 During this phase, males have highly lamellated olfactory organs and well-developed olfactory tracts, bulbs, and forebrains, the kind used for sustained swimming.

This is a new entry (OED Third Edition, March 2004; most recently modified version published online March 2022).

> as lemmas

olfactory tract

spec. (a) Anatomy. The whole extent of an organ or system of organs, as the alimentary or digestive tract, or a continuous longitudinal structure, such as one strand or division of a nerve-cord; esp. applied to particular regions of the brain or spinal cord, as the olfactory tract, optic tract, pyramidal tract, etc. Cf. fibre tract n. at fibre n. Compounds 2. (b) Ornithology. A feathered area of the skin of a bird (= pteryla n.), as distinguished from a featherless space.

extracted from tractn.³

n.1834

as lemmas

单词	olfactory tract
释义	olfactory tractn. Brit. /ɒlˌfakt(ə)rɪ ˈtrakt/, U.S. /ɑlˌfækt(ə)ri ˈtræk(t)/, /oʊlˌfækt(ə)ri ˈtræk(t)/ Origin: Formed within English, by compounding. Etymons: olfactory adj., tract n.³ Etymology: < olfactory adj. + tract n.³ Compare earlier olfactory nerve n. Anatomy and Zoology. A stalk of nerve fibres connecting the olfactory bulb to the remainder of the cerebrum. ΚΠ 1834 Philos. Trans. (Royal Soc.) 124 360 The fissure also which separates the olfactory tract from the superimposed cerebral mass, instead of being inferior, as in the Rodentia, is here lateral. 1921 F. Tilney & H. A. Riley Form & Functions Central Nerv. Syst. xxxiv. 613 The mammillary body serves as a relay station in the olfactory tract. 1997 G. S. Helfman et al. Diversity of Fishes xvii. 298/2 During this phase, males have highly lamellated olfactory organs and well-developed olfactory tracts, bulbs, and forebrains, the kind used for sustained swimming. This is a new entry (OED Third Edition, March 2004; most recently modified version published online March 2022). > as lemmas olfactory tract spec. (a) Anatomy. The whole extent of an organ or system of organs, as the alimentary or digestive tract, or a continuous longitudinal structure, such as one strand or division of a nerve-cord; esp. applied to particular regions of the brain or spinal cord, as the olfactory tract, optic tract, pyramidal tract, etc. Cf. fibre tract n. at fibre n. Compounds 2. (b) Ornithology. A feathered area of the skin of a bird (= pteryla n.), as distinguished from a featherless space.extracted from tractn.³ < n.1834 as lemmas
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