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Definition of Meiofauna
1. Noun. A type of interstitial fauna, such as psammon, found in rock fissures, between the grains of loose sediments, on algae, etc. It is a part of the microfauna. ¹
¹ Source: wiktionary.com
Medical Definition of Meiofauna
1. Animals ranging in size from approximately 0.1 mm to 1 mm that live within the sediments, the size class of transition from micro- to macrofauna. (09 Oct 1997)