| Answer | Crossword Clue |
|---|---|
| nidations | NIDATION, attachment of a blastocyst to the uterus wall |
| nidation | attachment of a blastocyst to the uterus wall |
| implantation | (in a mammal) The attachment of the fertilized egg or blastocyst to the wall of the uterus at the start of pregnancy, often delayed in some mammals by several months |
| implantations | (in a mammal) The attachment of the fertilized egg or blastocyst to the wall of the uterus at the start of pregnancy, often delayed in some mammals by several months |
