Definition of "meiofauna" []

• 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. (noun)

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• "These beasts, called meiofauna, are the smallest of multicellular organisms, about the size of a (single-celled) ameba."
• "His research at the University of Gent, where he founded the Marine BiologyDepartment, centered on the ecology of meiofauna."
• "Amazingly, there are as many different species of meiofauna -- about 3 million -- as of all other earthly creatures combined, says biologist Paul Montagne of the University of Texas."