Anterior means "in front of" or "the front surface of." The term usually refers to the front side of the body. For example, your knee caps and your face are on the anterior surfaces of your body.
David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.