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单词 myelinate
释义

myelinateadj.

Brit. /ˈmʌɪᵻlɪneɪt/, /ˈmʌɪᵻlɪnət/, U.S. /ˈmaɪələˌneɪt/, /ˈmaɪələnət/
Origin: Formed within English, by derivation. Etymons: myelin n.2, -ate suffix2.
Etymology: < myelin n.2 + -ate suffix2. Compare slightly earlier myelinate v. and myelinated adj.
Histology and Physiology. rare.
= myelinated adj.
ΘΚΠ
the world > life > the body > nervous system > nerve > parts of nerves > [adjective] > sheath of Schwann
myelinic1876
neurilemmal1883
myelinate1894
myelinated1894
Schwann1904
1894 Lancet 3 Nov. 1037/1 In a muscular nerve trunk from one-third to one-half of the myelinate fibres are from cells of the spinal root ganglion.
1910 Proc. Royal Soc. 1909–10 B. 82 453 Certain minute myelinate fibres sparse in number were quite sound.
1930 Proc. Royal Soc. B. 106 329 The motor nerve-fibre of the motor-unit being myelinate our enumerations have not comprised other than myelinate fibres.
This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).

myelinatev.

Brit. /ˈmʌɪᵻlɪneɪt/, U.S. /ˈmaɪələˌneɪt/
Origin: Formed within English, by derivation. Etymons: myelin n.2, -ate suffix3.
Etymology: < myelin n.2 + -ate suffix3. Compare slightly later myelinate adj., myelinated adj.
Anatomy and Physiology.
1. transitive. To enclose (a nerve fibre or fibres) in myelin.
ΚΠ
1890 Brain 13 560 Flechsig thinks it not impossible that the striæ acousticæ (which are first myelinated some time after birth) are connected with the posterior tubercles.
1976 Brain Res. 115 361 Quiescent Schwann cells..could ensheath and, in time, myelinate some of these axons.
1995 N.Y. Times 27 June c3/3 The Schwann cells were actively myelinating the regenerating nerves.
2. intransitive. To undergo myelination.
ΘΚΠ
the world > life > the body > secretory organs > action or process of secreting > secreting spec. > [verb (intransitive)] > secrete myelin
myelinate1895
1895 Philos. Trans. 1894 (Royal Soc.) B. 185 743 (note) On the mesial side of the direct cerebellar tract..are scattered fibres..which myelinate at an earlier date than the pyramidal fibres proper.
1930 Arch. Neurol. & Psychiatry (Chicago) 24 852 The latter..myelinates about the fifth or sixth month of fetal life, whereas the neostriatum myelinates later.
1977 Lancet 16 July 141/2 The human brain myelinates actively until the age of 16.
1987 MS News Autumn 35/1 When transplanted they [sc. Schwann cells] migrated into the central nervous system and started myelinating.
This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).
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adj.1894v.1890
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