evolution
n//ɛvəˈluːʃ(ə)n//evolution, utveckling
(geometry) The opening out of a curve; now more generally, the gradual transformation of a curve by a change of the conditions generating it. [from 17th c.]
(biology) The transformation of animals, plants and other living things into different forms (now understood as a change in genetic composition) by the accumulation of changes over successive generations. [from 19th c.]