Definition of african-americans:
(n) :
A member of an ethnic group consisting of Americans of black African descent.
(adj) :
(of a person) Pertaining to the African-American ethnicity.
(adj) :
Of or pertaining to the culture of African-American people.
(n) :
(US, loosely, proscribed, sometimes offensive) Any black American person; by extension, any black person.
(adj) :
(US, loosely, proscribed, sometimes offensive, of a person) Black.