fertilized egg fertilize • fertilized ovum · · · Info · Definitions · Synonyms · Characters · · fertilized egg · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life. Synonyms: embryo, conceptus, fertilized egg. · · Noun Definition 1 Synonyms · · · embryo · · Synonym 1 conceptus · · Synonym 2 Characters · · space U+0020 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074 z latin small letter z U+007A