meiofauna

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noun

A group of marine or freshwater, typically benthic organisms that are intermediate in terms of size between macrofauna and microfauna, and which can pass through a 1 mm sieve, but are retained by a 45 μm sieve.

RareScrabble 14

Meanings

nounmeiofauna (plural meiofaunas or meiofaunae)

plural meiofaunas · plural meiofaunae

  1. biologyA group of marine or freshwater, typically benthic organisms that are intermediate in terms of size between macrofauna and microfauna, and which can pass through a 1 mm sieve, but are retained by a 45 μm sieve.

    Synonyms: meiobenthos

Synonyms & antonyms

nounA group of marine or freshwater, typically benthic organisms that are intermediate in terms of size between macrofauna and microfauna, and which can pass through a 1 mm sieve, but are retained by a 45 μm sieve.

Also see

Origin

  1. Ancient Greekμεῖον“less”
  2. Englishmeiofauna

From meio- + fauna. Meio- is from Ancient Greek μεῖον (meîon, “less”).

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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