mesofauna

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noun

Any animal of intermediate size, typically invertebrates, such as bivalves, arthropods, insects, and annelids.

OriginEnglish fauna ← Ancient Greek μέσος (mésos) ← Proto-Hellenic *métsos →
Scrabble 14
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Meanings

nounmesofauna (plural mesofaunae or mesofaunas)

plural mesofaunae · plural mesofaunas

  1. Any animal of intermediate size, typically invertebrates, such as bivalves, arthropods, insects, and annelids.

Origin

  1. Proto-Indo-European*me
  2. Proto-Indo-European*dʰeh₁-?
  3. Proto-Indo-European*médʰi
  4. Proto-Indo-European*médʰyos
  5. Proto-Hellenic*métsos
  6. Ancient Greekμέσος (mésos)
  7. Englishmeso-
  8. Englishfauna
  9. Englishmesofauna

From meso- + fauna.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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