Pronunciation: (un'dur-rī"tur), [key]
1. a person or company that underwrites policies of insurance or carries on insurance as a business.
2. a person or company that underwrites shares or bonds.
3. a person or organization that finances something; backer: the underwriters of the ballet company.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.