Hirudo

·noun A genus of leeches, including the common medicinal leech. ·see Leech.

hirudo
hĭrūdo, ĭnis, f. (also called sanguisūga), a leech , blood-sucker , Plin. 32, 10, 42, § 122: ego ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
hirudo
hirūdō inis, f HER-, a leech, blood-sucker : plena cruoris, H.—Fig.: aerari. ...

An Elementary Latin Dictionary