Any of various limited forms of U.S. private health insurance which pays for medical services additional to those covered by the government health insurance plans. Usually attributive.
Origin
1960s; earliest use found in The Oakland Tribune. From medi- + gap, after Medicare.
Definition of medigap in US English:
medigap
nounˈmɛdɪɡap
US
Any of various limited forms of U.S. private health insurance which pays for medical services additional to those covered by the government health insurance plans. Usually attributive.
Origin
1960s; earliest use found in The Oakland Tribune. From medi- + gap, after Medicare.