chiefly historical
■ noun
1》 Biology a supporter of the theory that all life forms gradually evolve to a higher form.
2》 an advocate of political or social progress.
■ adjective Biology of or being a ~.
chiefly historical
■ noun
1》 Biology a supporter of the theory that all life forms gradually evolve to a higher form.
2》 an advocate of political or social progress.
■ adjective Biology of or being a ~.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004