extrachromosomal

adjective

Happening outside a chromosome.

OriginEnglish chromosomal ← Proto-Indo-European *h₂élisder.? ← Latin extrā →
RareScrabble 32
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Meanings

adjectiveextrachromosomal (not comparable)
  1. not comparableHappening outside a chromosome.

Origin

  1. Proto-Indo-European*h₁éǵʰ
  2. Proto-Indo-European*h₁éǵʰs
  3. Proto-Indo-European*h₁eǵʰsteros
  4. Proto-Italic*eksteros
  5. Latinexter
  6. Latinextrā
  7. Englishextra-
  8. Englishchromosome
  9. Proto-Indo-European*h₂el-
  10. Proto-Indo-European*h₂élisder.?
  11. Englishchromosomal
  12. Englishextrachromosomal

From extra- + chromosomal.

Full word history & related roots →
Cite this entry
APA

extrachromosomal. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/extrachromosomal

MLA

“extrachromosomal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/extrachromosomal. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “extrachromosomal,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/extrachromosomal.

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