| Noun | 1. | implantation - (embryology) the organic process whereby a fertilized egg becomes implanted in the lining of the uterus of placental mammalsembryology - the branch of biology that studies the formation and early development of living organisms | |
| 2. | implantation - the act of planting or setting in the ground | |
| 3. | implantation - a surgical procedure that places something in the human body; "the implantation of radioactive pellets in the prostate gland" | |