An early stage of animal development that begins after division of the zygote (the earliest stage, in which joined egg and sperm have not yet divided).
The developing human organism (a group of cells) that arise from a fertilized egg (after merging of egg and sperm). An embryo does have the potential to become a complete ...
The name used to describe a developing fertilized egg from the time of implantation through the eighth week after conception. After eight weeks it is called a fetus.
When a person has an autoimmune disorder, immune cells mistakenly attack the body’s own cells. Examples of autoimmune disorders are lupus, rheumatoid arthritis, and Grave’s ...
A physician-scientist who performs laboratory evaluations of male fertility. May hold a Ph.D. degree instead of an M.D. Usually affiliated with a fertility treatment center ...
A body of relatively still fresh or salt water of considerable size, localized in a basin that is surrounded by land. Lakes are inland and not part of ...
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