Stereochemistry definition, the branch of chemistry that deals with the determination of the relative positions in space of the atoms or groups of atoms in a compound and with the effects of these positions on the properties of the compound. Origin of stereochemistry.
The Ed.D. is a doctoral degree in education. 1  Similar to the Ph.D., doctor of philosophy that is awarded in all disciplines, the Ed.D. entails several years of study and the completion of doctoral (and sometimes master's) comprehensive exams as well as a dissertation.
Erectile dysfunction (ED) is a common type of male sexual dysfunction. It is when a man has trouble getting or keeping an erection. ED becomes more common as you get older. But it's not a natural part of aging. Some people have trouble speaking with their doctors about sex. But if you have ED, you should tell your doctor.