1. A private health insurance policy that covers some of the costs not paid by Medicare, such as copayments, coinsurance, and deductibles.
Usage: Also called 'supplemental insurance'; U.S. healthcare context; Often capitalized as 'Medigap' when referring to the standardized plans

Examples

• Many seniors purchase a medigap policy to help pay for medical expenses that Medicare doesn't cover.
• Medigap plans are standardized by the federal government, making it easier to compare options.
• She enrolled in a medigap plan to reduce her out-of-pocket costs for doctor visits.
• Medigap insurance can help protect you from unexpected medical bills.
• The cost of medigap coverage varies depending on the plan you choose and your age.