- discrimination against persons of a certain age group.
- a tendency to regard older persons as debilitated, unworthy of attention, or unsuitable for employment.
- discrimination against people on the grounds of age; specifically, discrimination against the elderly
“discrimination against people based on age,” coined 1969 by U.S. gerontologist Dr. Robert N. Butler, from age + -ism, on pattern of racism, sexism. Related: Ageist.