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coinsurance

coinsurance

1 8.5
An insurance arrangement where two or more companies share the same risk
  • noun
  • /ˌkɔɪnˈʃʊərəns/
  • Specialized
: coaseguro
  • After reviewing the policy details, she learned that her medical expenses would be subject to coinsurance, meaning she would pay a percentage of the costs.

Examples

  • In some instances, the banks' insurance may include a substantial coinsurance percentage or a massive self-insured retention.

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  • In a coinsurance agreement, both insurance companies share the responsibility for any claims that arise.

  • The business owner opted for a coinsurance arrangement to ensure that multiple insurers covered potential risks.

Surface Forms

coinsurance singular
coinsurances plural

Morphology

coinsurance = insurance (transparent) = co + insurance

Formed by productive prefix 'co-' (joint/shared) + 'insurance', so the sense 'jointly cover a risk' is directly derivable.

Etymology

The word coinsurance comes from the prefix co- meaning 'together' and insurance meaning protection, so it originally meant protection given 'together' by more than one company.