Oedema is a medical condition characterized by an abnormal accumulation of fluid in the body's tissues. It is also known as DROPSY, SWELLING, and EDEMA. DROPSY is a term used to describe the SWELLING caused by oedema, which is usually localized in the feet, ankles, and legs. EDEMA is another term for oedema, and it is used to describe the SWELLING caused by the accumulation of fluid in the body's tissues. SWELLING is a general term used to describe the enlargement of a body part due to the accumulation of fluid. Oedema is a serious medical condition that can lead to complications if left untreated.