prosencephalonn.

Brit.

/ˌprɒsɛnˈsɛfəlɒn/,

/ˌprɒsɛnˈsɛfl̩ɒn/,

/ˌprɒsɛnˈkɛfəlɒn/,

/ˌprɒsɛnˈkɛfl̩ɒn/, U.S.

/ˌprɑsnˈsɛfəˌlɑn/

Inflections: Plural prosencephala.

Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πρός , encephalon n.

Etymology: < ancient Greek πρός toward (see prosody n., but here used as if equivalent to πρό : see pro- prefix²) + encephalon n. (see quot. 1846).

Anatomy and Zoology.

The anterior part of the developing brain; spec. the most anterior of the three primitive cerebral vesicles, which gives rise to the telencephalon and diencephalon.

ΘΚΠ

the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > regions of brain

mesencephal1839

mesocephale1839

mesencephalon1846

prosencephalon1846

mesocephalon1857

midbrain1864

metencephalon1867

brain mantle1874

thalamencephalon1875

procerebrum1884

metepencephalon1885

thalamencephal1891

telencephalon1893

rhombencephalon1895

pretectum1961

1846 R. Owen Lect. Compar. Anat. Vertebr. Animals i. 181 Influenced by the inapplicability of the term ‘hemispheres’..I shall apply the term ‘prosencephalon’ to the constant division of the brain in question, and prosencephalic lobes or prosencephala to its commonly distinct moieties.

1880 A. Günther Introd. Study of Fishes 99 The prosencephalon, mesencephalon, and metencephalon are contiguous.

1930 H. G. Newth Marshall & Hurst's Junior Course Pract. Zool. (ed. 11) xii. 275 From the hinder part of the roof arises the pineal body, a slender tubular process which extends forwards over the prosencephalon.

1979 Sci. Amer. Sept. 81/3 Of the three primary vesicles the prosencephalon is the most productive in terms of both further subdivision and further differentiation.

1991 Prenatal Diagnosis 11 459 Holoprosencephaly is a cerebral anomaly resulting from incomplete cleavage of the primitive prosencephalon or forebrain.

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

单词	prosencephalon
释义	prosencephalonn. Brit. /ˌprɒsɛnˈsɛfəlɒn/, /ˌprɒsɛnˈsɛfl̩ɒn/, /ˌprɒsɛnˈkɛfəlɒn/, /ˌprɒsɛnˈkɛfl̩ɒn/, U.S. /ˌprɑsnˈsɛfəˌlɑn/ Inflections: Plural prosencephala. Origin: A borrowing from Greek, combined with an English element. Etymons: Greek πρός , encephalon n. Etymology: < ancient Greek πρός toward (see prosody n., but here used as if equivalent to πρό : see pro- prefix²) + encephalon n. (see quot. 1846). Anatomy and Zoology. The anterior part of the developing brain; spec. the most anterior of the three primitive cerebral vesicles, which gives rise to the telencephalon and diencephalon. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [noun] > regions of brain mesencephal1839 mesocephale1839 mesencephalon1846 prosencephalon1846 mesocephalon1857 midbrain1864 metencephalon1867 brain mantle1874 thalamencephalon1875 procerebrum1884 metepencephalon1885 thalamencephal1891 telencephalon1893 rhombencephalon1895 pretectum1961 1846 R. Owen Lect. Compar. Anat. Vertebr. Animals i. 181 Influenced by the inapplicability of the term ‘hemispheres’..I shall apply the term ‘prosencephalon’ to the constant division of the brain in question, and prosencephalic lobes or prosencephala to its commonly distinct moieties. 1880 A. Günther Introd. Study of Fishes 99 The prosencephalon, mesencephalon, and metencephalon are contiguous. 1930 H. G. Newth Marshall & Hurst's Junior Course Pract. Zool. (ed. 11) xii. 275 From the hinder part of the roof arises the pineal body, a slender tubular process which extends forwards over the prosencephalon. 1979 Sci. Amer. Sept. 81/3 Of the three primary vesicles the prosencephalon is the most productive in terms of both further subdivision and further differentiation. 1991 Prenatal Diagnosis 11 459 Holoprosencephaly is a cerebral anomaly resulting from incomplete cleavage of the primitive prosencephalon or forebrain. This entry has been updated (OED Third Edition, June 2007; most recently modified version published online March 2022). < n.1846
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