Fec·un·date v. t. [imp. & p. p. Fecundated p. pr. & vb. n. Fecundating ] 1. To make fruitful or prolific. 2. Biol. To render fruitful or prolific; to impregnate; as, in flowers the pollen fecundates the ovum through the stigma. ◄ ►