hypomyelination

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noun

An abnormally small amount of myelin in the brain and spinal cord.

Opposite
hypermyelination
OriginEnglish myelination ← Ancient Greek ὑπο- (hupo-) ← Proto-Indo-European *upó →
Scrabble 28
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Meanings

nounhypomyelination (usually uncountable, plural hypomyelinations)

plural hypomyelinations

  1. uncountableusuallymedicineAn abnormally small amount of myelin in the brain and spinal cord.

    Antonyms: hypermyelination

Synonyms & antonyms

nounAn abnormally small amount of myelin in the brain and spinal cord.

Opposite
hypermyelination

Origin

  1. Proto-Indo-European*upó
  2. Ancient Greekῠ̔πό (hŭpó)
  3. Ancient Greekὑπο- (hupo-)
  4. Englishhypo-
  5. Englishmyelination
  6. Englishhypomyelination

From hypo- + myelination.

Full word history & related roots →
Cite this entry
APA

hypomyelination. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/hypomyelination

MLA

“hypomyelination.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hypomyelination. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “hypomyelination,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/hypomyelination.

Source: hypomyelination on Wiktionary, CC BY-SA 4.0.