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单词 mesencephal
释义

mesencephaln.

Brit. /ˌmɛsɛnˈsɛfl/, /ˌmɛsɛnˈkɛfl/, U.S. /ˌmɛzənˈsɛfl/; see also meso- comb. form.
Forms: 1800s– mesencephal, 1800s mesencephale Brit. /ˌmɛsɛnˈsɛfeɪl/, /ˌmɛsɛnˈkɛfeɪl/, U.S. /ˌmɛzɛnˈsɛfeɪl/.
Origin: A borrowing from French. Etymon: French mésencéphale.
Etymology: < French mésencéphale ( F. Chaussier Exposition sommaire de la struct. et des différentes parties de l'encéphale ou cerveau (1807) 193) < méso- meso- comb. form + encéphale encephalon n. Compare mesocephale n. N.E.D. (1906) gives only the pronunciation (mesĕnse·făl) /mɛsɛnˈsɛfəl/, under the headword form mesencephal(e.
Anatomy. rare.
Originally: a middle part of the brain, between the medulla oblongata and the cerebrum and cerebellum; (later) spec. = mesencephalon n.
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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
1839–47 Todd's Cycl. Anat. & Physiol. III. 684/2 The mesocephale or mesencephale. The name was suggested by Chaussier.
1889 A. H. Buck Ref. Handbk. Med. Sci. VIII. 128/2 In early embryonic stages the mesencephal is the most conspicuous region of the entire brain.
1900 Science 16 Mar. 419/2 There is another necklike region cephalad of the mesencephal quite as distinct and sometimes more so.
This entry has been updated (OED Third Edition, September 2001; most recently modified version published online June 2022).
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n.1839
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