оплодотворять означает в английский

fecundate [fecundated, fecundating, fecundates]▼(to inseminate)
verb
[UK: ˈfiːk.ən.deɪt] [US: ˈfiːk.ən.ˌdeɪt]

impregnate [impregnated, impregnating, impregnates]▼(to cause to become pregnant)
verb
[UK: ˈɪm.preɡ.neɪt] [US: ˌɪm.ˈpreg.ˌnet]