Hirudinea
Pronunciation: hir′ū-din′ē-ă
Definition: The leeches, a class of worms (phylum Annelida) with flat, segmented bodies, a sucker at the posterior end, and often a smaller sucker at the anterior end; they are predatory on invertebrate tissues, or feed on blood and tissue exudates of vertebrates.
[L. hirudo, leech]
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Examples: glitazone, GI cocktail, etc.

