a. [f. prec. + -AL.] Of or pertaining to evolution; due to or produced by evolution.
1862. F. Hall, Hindu Philos. Syst., 181, note. The Upanishads … describe Brahma … as unchangeable; and this notion would be contravened by that of his being an evolutional material cause.
1874. Morley, Compromise (1886), 209. The evolutional theory of society.
