Electroejaculation - Ejaculation by means of electric stimulus to obtain a semen specimen. Used when a man has had a spinal cord injury or has an ejaculation disorder. Embryo - The name given to a developing fertilized egg until eight weeks of gestation. Embryo donation - The donation of remaining cryopreserved embryos to another infertile couple, by a couple who has completed their family. Endometrial biopsy - A test in which a small piece of the endometrium is removed to determine if the female's endometrium is developing properly for implantation of the egg.
Endometriosis is a common cause of infertility.
Endometrium - The inner lining of the uterus where the embryo implants. Estradiol - A female hormone that is secreted by the growing follicle, a type of estrogen or E2. It is largely responsible for stimulating the uterine lining to thicken during the first half of the menstrual cycle. A pair of organs attached to the uterus. The egg travels from the ovary to the uterus through narrow passageways in the middle of these tubes.