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copayment

American  
[koh-pey-muhnt] / koʊˈpeɪ mənt /

noun

  1. a contributory payment by an employer, usually matching that of an employee, toward the payment of healthcare or life-insurance premiums, a pension fund, etc.


copayment British  
/ kəʊˈpeɪmənt /

noun

  1. a fee paid by a subscriber to a service for the use of additional services not covered by the subscription

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of copayment

co- + payment