n.
A fatty substance obtained from wool and used in soaps, cosmetics, and ointments. Also called wool fat.
[German : from Latin lāna, wool + Latin oleum, oil.]
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.