1) Biological process 2) Organic process 
• (a.) Relating to evolution; as, evolutionary discussions.
Ev`o·lu'tion·a·ry adjective Relating to evolution; as, evolutionary discussions. 
[adj] - of or relating to or produced by evolution
evolutionary 1. Relating to, resulting from, or produced by evolution. 2. Developing in small increments that accumulate to bring about significant changes.
adjective of or relating to or produced by evolution; `evolutionary biology`
related to change of a species by adaptation; People
pertaining to evolution or development; developmental: the evolutionary origin of species. · of, pertaining to, or in accordance with a theory of evolution, esp. in biology. · pertaining to or performing evolutions.