catachoma

C3A1T1A1C3H4O1M3A1

noun

A small tubercle or ridgelet located on the peripheral, inner surface of the left valve of a bivalve.

OriginEnglish choma ← Ancient Greek κᾰτᾰ- (kătă-) ← Proto-Hellenic *kətá →
Scrabble 18
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Meanings

nouncatachoma (plural catachomata)

plural catachomata

  1. biologyA small tubercle or ridgelet located on the peripheral, inner surface of the left valve of a bivalve.

Origin

  1. Proto-Indo-European*ḱe?
  2. Proto-Indo-European*ḱóm
  3. Proto-Indo-European*ḱm̥-th₂der.?
  4. Proto-Hellenic*kətá
  5. Ancient Greekκᾰτᾰ́ (kătắ)
  6. Ancient Greekκᾰτᾰ- (kătă-)
  7. Englishcata-
  8. Englishchoma
  9. Englishcatachoma

From cata- + choma.

Full word history & related roots →
Cite this entry
APA

catachoma. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/catachoma

MLA

“catachoma.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/catachoma. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “catachoma,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/catachoma.

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