Meaning of coinsurer

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.