{ } n. [ Gr. fy^lon race, tribe + E. genesis, or root of Gr. gi`gnesqai to be born. ] The history of genealogical development; the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms; the historic exolution of the phylon or tribe, in distinction from ontogeny, or the development of the individual organism, and from biogenesis, or life development generally.
Syn. -- evolution. [ 1913 Webster ]