viljastama tähendus null.

fertilise [fertilised, fertilising, fertilises]▼◼◼◼verb
[UK: fˈɜːtəlˌaɪz] [US: fˈɜːɾəlˌaɪz]

impregnate [impregnated, impregnating, impregnates]▼◼◼◻verb
[UK: ˈɪm.preɡ.neɪt] [US: ˌɪm.ˈpreg.ˌnet]

fertilize [fertilized, fertilizing, fertilizes]▼◼◻◻verb
[UK: ˈfɜː.tə.laɪz] [US: ˈfɝː.tə.ˌlaɪz]