n.
An acidic glycosaminoglycan found especially in lung and liver tissue and having the ability to prevent the clotting of blood, used in the treatment of thrombosis.
[Late Latin hēpar, liver (from Greek) + -IN.]
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.
