noun
preimplantation death
Rare medical term referring to the death of an embryo before it implants in the uterus.
着床前死亡は、胚が子宮内膜に着床する前に死滅することを指す。
Preimplantation death refers to the death of an embryo before it implants in the uterine lining.
Compound of 着床 (implantation) + 前 (before) + 死亡 (death).