■ verb
1》 develop gradually.
2》 (of an organism or biological feature) develop over successive generations by evolution.
3》 Chemistry give off (gas or heat).
Derivatives
evolvable adjective
~ment noun
Origin
C17 (in the sense 'make more complex, develop'): from L. ~re , from e- (var. of ex- ) 'out of' + volvere 'to roll'.