| hirudin | <protein> The substance secreted by leeches which prevents blood from clotting. Hirudin is used by the leeches while they feed on blood from their victims. (09 Oct 1997) |
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| hirudine | <zoology> Of or pertaining to the leeches. Source: Websters Dictionary (01 Mar 1998) |
| hirudinea | <zoology> An order of Annelida, including the leeches. Synonym: Hirudinei. Origin: NL, fr. L. Hirudo, hirudinis, a leech. Source: Websters Dictionary (01 Mar 1998) |
| hirudiniasis | <disease> A condition resulting from leeches attaching themselves to the skin or being taken into the mouth or nose while drinking. Origin: L. Hirudo, leech, + G. -iasis, condition (05 Mar 2000) |
| hirudinization | 1. The process of rendering the blood noncoagulable by the injection of hirudin. 2. The application of leeches. (05 Mar 2000) |