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Meaning of copayment

co•pay•ment

Pronunciation: (kō-pā'munt), [key]
— n.
  1. a contributory payment by an employer, usually matching that of an employee, toward the payment of health-care or life-insurance premiums, a pension fund, etc.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.