The term "lymph" refers to a watery fluid in the human body. Lymph is a clear, colorless fluid that circulates throughout the lymphatic system, which is responsible for removing waste, toxins, and other unwanted substances from the body. It is produced by the lymph nodes and contains white blood cells, proteins, and other substances. The watery nature of lymph allows it to flow easily through the lymphatic vessels and perform its important functions in maintaining the body's immune system and overall health.