- A bloodsucking aquatic annelid worm (genus Hirudo, class Hirudinea) sometimes used in medicine for local withdrawal of blood.
- To treat medically by applying leeches.
[A.S. laece, a physician; a leech, because of its therapeutic use]
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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.