Hydrina definitions

Hydrina

• (n. pl.) The group of hydroids to which the fresh-water hydras belong.
Found on http://thinkexist.com/dictionary/meaning/hydrina/

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Hydrina

Hy·dri'na noun plural [ New Latin See Hydra .] (Zoology) The group of hydroids to which the fresh-water hydras belong.
Found on http://www.encyclo.co.uk/webster/H/75

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