Dictionary
co•in•sur•er
Pronunciation: (kō"in-shoor'ur, -shûr'-), [key]—
n.
1. a person or firm that contracts as an insurer jointly with another or others.
2. an insured who is liable to bear part of the loss under a coinsurance provision.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.