Pronunciation: (ev"u-lOO'shu-nist or, esp. Brit., ē"vu-),[key] —n. 1. a person who believes in or supports a theory of evolution, esp. in biology.
2. a person who supports a policy of gradual growth or development rather than sudden change or expansion.
—adj.Also,ev"o•lu"tion•is'tic. 1. of or pertaining to evolution or evolutionists.
2. believing in or supporting a theory of evolution, esp. in biology.