Langimage
English

myelinated

|my-el-in-at-ed|

C1

/ˈmaɪ.ə.lɪˌneɪ.tɪd/

(myelinate)

covered with myelin sheath

Base Form3rd Person Sing.PastPresent ParticipleNoun
myelinatemyelinatesmyelinatedmyelinatingmyelination
Etymology
Etymology Information

'myelinated' originates from the modern English verb 'myelinate', which is formed from 'myelin' (the insulating sheath around nerves) and the suffix '-ate' (to make or become).

Historical Evolution

'myelinate' was coined in the late 19th to early 20th century from 'myelin' (from French 'myéline', from Greek 'myelos' meaning 'marrow') and the verb-forming suffix '-ate'. 'Myelinated' is the adjectival or past participle form.

Meaning Changes

Initially, it meant 'to cover with myelin', and this meaning has remained consistent, now commonly used in neuroscience to describe nerve fibers with a myelin sheath.

Meanings by Part of Speech

Verb 1

past tense or past participle form of 'myelinate'.

The nerve fibers were myelinated during development.

Adjective 1

having a myelin sheath; covered with myelin, especially referring to nerve fibers.

Myelinated axons transmit signals faster than unmyelinated ones.

Synonyms

Antonyms

Last updated: 2025/08/03 18:07