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Hydrachnidae
plural noun
Hy·drach·ni·dae
\-nəˌdē\
Definition of Hydrachnidae
in some classifications
: a large family of water mites (group Hydrachnellae) that includes all the common free-living mites of fresh water and a few parasites of the gills of mollusks and that is now usually broken up into numerous separate families
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Origin and Etymology of hydrachnidae
New Latin, from Hydrachna, type genus (from hydr- + Greek achna, achnē foam, chaff) + -idae
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