英和和英

語源

co- +‎ insurance

名詞

coinsurance (countable かつ uncountable, 複数形 coinsurances)

1. (US) The joint assumption of risk between the insurer and the insured party.
   • 2021, Medicare & You 2022, Baltimore, MD: U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES : Centers for Medicare & Medicaid Services, page 6:

     For Part B-covered services, you usually pay 20% of the Medicare-approved amount after you meet your deductible. This is called your coinsurance.

2. (international) The joint assumption of risk between multiple insurers.

参考

• coinsurer
• copayment
• deductible