n.
A white crystalline compound, C19H16O4, used as a rodenticide and as an anticoagulant.
[W(isconsin) A(lumni) R(esearch) F(oundation) + (COUM)ARIN.]
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.