(n) :
one from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a fore father; (Biology) An earlier type; a progenitor
"this fossil animal is regarded as the ancestor of the horse."
(n) :
one from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a fore father; (Biology) An earlier type; a progenitor
"this fossil animal is regarded as the ancestor of the horse."