ev‧o‧lu‧tion‧a‧ry AC /ˌiːvəˈluːʃənəri◂, ˌevə- $ ˌevəˈluːʃəneri◂/ adjective
[Word Family: verb: evolve; noun: evolution; adjective: evolutionary]

1. relating to the way in which plants and animals develop and change gradually over a long period of time:
the evolutionary development of birds
Some scientists have rejected evolutionary theory.

2. relating to the way in which ideas or situations gradually change and develop over a long period of time:
He is in favour of gradual, evolutionary social change.

[TahlilGaran] Dictionary of Contemporary English ▲