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.
There are a few things that can cause this. Giving too much IV fluid or administering it too fast is the first cause. The second is the bodyâs failure to excrete fluids. This can be caused by diseases such as heart failure or renal failure, or altered lymphatic function. Increased levels of sodium will also cause the body to retain water.