hydrachnid

== English == === Etymology === (This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.) === Noun === hydrachnid (plural hydrachnids) (zoology) An aquatic mite of the genus Hydrachna or of its relatives in Hydrachnidiae or similar groups. === Further reading === Hydrachnidiae on Wikipedia.Wikipedia Hydrachnidae on Wikispecies.Wikispecies Category:Hydrachna on Wikimedia Commons.Wikimedia Commons