N1I1D2A1T1I1O1N1S1
10 points
NIDATIONS is validvalid
NIDATION, the act of nidating
NIDATION, the process by which the blastocyst becomes attached to the wall of the uterus
NIDATION, the act of nidating
NIDATION, the process by which the blastocyst becomes attached to the wall of the uterus