Word Origin and History for tertiary Expand. adj. 1650s, of the third order, rank, degree, etc., from Latin tertiarius of or pertaining to a third, from tertius third, a third, from root of tres three (see three).
Water and Fluid retention in legs, also known as edema, is a medical condition caused by abnormal accumulation of water or fluids in the bodyâs tissues. Though excess water can be accumulated anywhere in the body, the most common areas are the ankles and legs.
7 Treatment for Edema. Water retention, also called edema, is swelling caused by excess fluid trapped in the body's tissue. This condition can occur in any part of the body; however, it is most commonly observed in feet, ankles, legs, hands, and arms.ymphedema: This type of edema is caused by the breakdown of the lymphatic system. Fluids are removed from the lymph to fill up other places such as the spaces between tissues and muscles. It can be caused by an underlying medical condition such as multiple sclerosis or medications such as ibuprofen.