Coinsurance

noun

noun ·4 syllables ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The joint assumption of risk between the insurer and the insured party. US, countable, especially, uncountable
  2. 2
    insurance issued jointly by two or more underwriters wordnet
  3. 3
    The amount paid by the insured in accordance with this risk sharing. US, countable, especially, metonymically, uncountable

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

  4. 4
    The joint assumption of risk between multiple insurers. countable, uncountable

Example

More examples

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

Etymology

From co- + insurance.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.