preopticadj.

Brit.

/ˌpriːˈɒptɪk/, U.S.

/priˈɑptɪk/

Origin: Formed within English, by derivation. Etymons: pre- prefix, optic adj.

Etymology: < pre- prefix + optic adj.

Anatomy.

†1. Designating the anterior quadrigeminal body (superior colliculus) of the brain. Obsolete. rare.Apparently only attested in dictionaries or glossaries.

ΘΚΠ

the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > lobe

rhinencephalic1846

postnasal1859

parietal1861

prefrontal1878

postrhinal1880

postfrontal1883

suboccipital1885

insular1886

transfrontal1889

preoptic1890

premotor1923

1890 Cent. Dict. Preoptic, anterior with respect to optic lobes; pregeminal: specifically noting the anterior pair of the optic lobes or corpora quadrigemina of the brain.

2. Situated in front of the optic chiasma; spec. of or designating the region of the brain consisting of the anterior part of the hypothalamus and third ventricle.

ΚΠ

1896 Amer. Naturalist 30 837 A second group of sulci arising in the optic and preoptic recesses extend to the porta.

1907 J. B. Johnston Nerv. Syst. Vertebr. xviii. 297 Surrounding the pre~optic recess is a layer of cells of very primitive character.

1970 Jrnl. Anat. 107 186 Evidence which indicates that the preoptic area is involved in the control of reproductive function.

1996 Daily Tel. 12 Jan. 11/2 Nerve cells in the hypothalamus, located in a region called the ventrolateral preoptic area, provide direct input to other nerve cells which contain messenger chemicals.

This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).

单词	preoptic
释义	preopticadj. Brit. /ˌpriːˈɒptɪk/, U.S. /priˈɑptɪk/ Origin: Formed within English, by derivation. Etymons: pre- prefix, optic adj. Etymology: < pre- prefix + optic adj. Anatomy. †1. Designating the anterior quadrigeminal body (superior colliculus) of the brain. Obsolete. rare.Apparently only attested in dictionaries or glossaries. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > lobe rhinencephalic1846 postnasal1859 parietal1861 prefrontal1878 postrhinal1880 postfrontal1883 suboccipital1885 insular1886 transfrontal1889 preoptic1890 premotor1923 1890 Cent. Dict. Preoptic, anterior with respect to optic lobes; pregeminal: specifically noting the anterior pair of the optic lobes or corpora quadrigemina of the brain. 2. Situated in front of the optic chiasma; spec. of or designating the region of the brain consisting of the anterior part of the hypothalamus and third ventricle. ΚΠ 1896 Amer. Naturalist 30 837 A second group of sulci arising in the optic and preoptic recesses extend to the porta. 1907 J. B. Johnston Nerv. Syst. Vertebr. xviii. 297 Surrounding the pre~optic recess is a layer of cells of very primitive character. 1970 Jrnl. Anat. 107 186 Evidence which indicates that the preoptic area is involved in the control of reproductive function. 1996 Daily Tel. 12 Jan. 11/2 Nerve cells in the hypothalamus, located in a region called the ventrolateral preoptic area, provide direct input to other nerve cells which contain messenger chemicals. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < adj.1890
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