Hydropic is an adjective that represents a medical condition of water retention in the body, which is also known as edema. There are many synonyms for this term, including dropsical, swollen, bloated, puffy, and even marshy. These words all describe a condition where water accumulates in various parts of the body, causing pain and discomfort. Some other related words to hydropic include anasarcous, which is a term specifically related to swelling of the legs and the arms, and serous, which refers to an increased fluid buildup in the tissues. All of these synonyms are useful to describe the medical condition and can help better understand the symptoms of hydropic.