Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
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noun
A white, fatty material, composed of lipids and lipoproteins, that surrounds the axons of nerves.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: anatomy, medicine, neuroanatomy, neurology, neuroscience, sciences
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a white fatty substance that forms a medullary sheath around the axis cylinder of some nerve fibers
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: myeline, medulla
Antonyms: none provided
Broader terms: fat
History
Etymology tree Ancient Greek μυελός (muelós)der. English myelo- Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Italic *-īnos Latin -īnusder. Old French -inbor. Middle English -in English -ineclip. English -in English myelin From myelo- + -in. From Ancient Greek μυελός (muelós, “marrow”).
Across languages
14 source translations are retained for this English entry.
