I. ˌȯl-ə-ˈmer-ə-kən, -ˈme-rə- adjective
Date: 1888
1.
a. also all-Amer·i·ca -ə-kə : selected (as by a poll of journalists) as one of the best in the United States in a particular category at a particular time
an all-American quarterback
b. : having only all-American participants
an all-American basketball team
2. : composed wholly of American elements
3. : representative or typical of the United States or its ideals
an all-American boy
her all-American optimism
4. : of or relating to the American nations as a group
II. noun
Date: 1920
1. also all-Amer·i·ca : one (as an athlete) that is voted all-American
2. : one that has all-American qualities or characteristics
a clean-cut all-American