Medical Dictionary
Hirudinidae
noun pl Hir·u·din·i·dae \ˌhir-(y)ə-ˈdin-ə-ˌdē\
Medical Definition of HIRUDINIDAE
: a family of aquatic leeches that have 5-ringed segments, 5 pairs of eyes, and usually 3-toothed jaws and that include the common medicinal leech
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