1. the process by which a fertilized egg becomes embedded in the uterine lining; implantation.
Usage: medical/biological term; also called implantation

Examples

• Nidation occurs approximately 6 to 12 days after fertilization.
• The success of pregnancy depends on proper nidation of the embryo.
• Doctors monitor nidation through hormone levels and ultrasound imaging.
• Complications during nidation can lead to miscarriage.
• Nidation is a critical stage in early embryonic development.