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hir·u·din(hîr-o͞od′n, hîr′ə-dən, -yə-)
A substance secreted by the buccal glands of leeches, capable of preventing coagulation by inactivating thrombin and used in medicine as an anticoagulant.
[Originally a trademark, from Latin hirūdō, leech.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Pharmacology) med an anticoagulant extracted from the mouth glands of leeches
[C20: from Latin hirudin-, hirudo leech + -in]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
hir•u•din(ˈhɪr yə dɪn, ˈhɪr ə-, hɪˈrud n)
a polypeptide obtained from the buccal gland of leeches, used in medicine chiefly as an anticoagulant.
[1900–05; formerly trademark]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.