Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A substance secreted by the buccal glands of leeches, capable of preventing coagulation by inactivating thrombin and used in medicine as an anticoagulant.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A peptide, obtained from the salivary glands of leeches, that is used as an anticoagulant

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

Originally a trademark, from Latin hirūdō, leech.

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Latin hirudo ("leech") + -in

Examples

  • Clotting is prevented by the injection of a harmless substance derived from leeches, known as hirudin.

    The War Terror

  • Parenteral anticoagulants, such as unfractionated heparin (UH), low molecular weight heparin (LMWH), hirudin derivatives, and argatroban may also cause ICH.

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  • Studies have found that leech saliva contains about 100 biologically active substances including hirudin, the substance that inhibits blood-clotting.

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