The Collaborative International Dictionary
Fecundating
Fecundate \Fec"un*date\, v. t. [imp. & p. p. Fecundated; p. pr. & vb. n. Fecundating.] [L. fecundare, fr. fecundus. See Fecund.]
To make fruitful or prolific.
--W. Montagu.(Biol.) To render fruitful or prolific; to impregnate; as, in flowers the pollen fecundates the ovum through the stigma.
Wiktionary
fecundating
vb. (present participle of fecundate English)