Topic: BIOLOGY
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ev‧o‧lu‧tion‧a‧ry
1HB relating to the way in which plants and animals develop and change gradually over a long period of time : 
the evolutionary development of birdsSome scientists have rejected evolutionary theory.
the evolutionary development of birdsSome 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.
He is in favour of gradual, evolutionary social change.
