- A genus of leeches that includes the species most commonly used in medicine.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for hirudo
They were well known to the ancients under the name of hirudo.Curiosities of Medical Experience</p>
J. G. (John Gideon) Millingen
They may either be provided with a peritoneal funnel (Nephelis, Clepsine) or have no internal opening (Hirudo).
In Hirudo, Leuckart has described three similar pairs of organs, the structure of which he has fully elucidated.
In Hirudo and Nephelis the mesenteron has from the first a sack-like form.
The general development of the body of Nephelis and Hirudo is nearly the same as that of Clepsine.