9 Grammatical Pitfalls


[hir-yuh-din, hir-uh-, hi-rood-n] /ˈhɪr yə dɪn, ˈhɪr ə-, hɪˈrud n/
a gray or white, water-soluble acidic polypeptide obtained from the buccal gland of leeches, used in medicine chiefly as an anticoagulant.
Origin of hirudin
1900-05; formerly trademark Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
Cite This Source
Examples from the web for hirudin
  • And hirudin, the anticoagulant, may be used in the treatment of inflammation of the middle ear.
  • If the leech is allowed to complete its meal, much of the hirudin is withdrawn before dropping off.
British Dictionary definitions for hirudin


(med) an anticoagulant extracted from the mouth glands of leeches
Word Origin
C20: from Latin hirudin-, hirudo leech + -in
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
hirudin in Medicine

hirudin hir·u·din (hĭ-rōōd'n, hēr'ə-dən, -yə-)
A substance extracted from the salivary glands of leeches and used as an anticoagulant.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for hirudin

Some English speakers likely know this word

Word Value for hirudin

Scrabble Words With Friends

Nearby words for hirudin