Simple past and past participle of to fertilize.(verb)
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Use "fertilized" in a sentence
""I think it's important to note with the term fertilized egg, that's the same thing as using the N word for an African American," said Mason."
"Well, the Pill prevents implantation of the fertilized egg (which, being fertilized, is now a baby!), so effectively, it's aborting the baby!"
"As far as sentience goes the counter argument to yours is simply that it is as true that carried to term the fertilized cell will turn into a sentient being as that the earth circles the sun, but cows, chickens and shrimp not only are not, but never will be sentient."