nidation nidana • nidatory · · · Info · Definitions · Synonyms · Characters · · nidation · · Text Latin · · Script 8 · · Length Definitions · · · (noun) (embryology) the organic process whereby a fertilized egg becomes implanted in the lining of the uterus of placental mammals. Synonyms: implantation. · · Noun Definition 1 Synonyms · · · implantation · · Synonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074