Note how the tissue fluid is entering the blind ends of lymph capillaries (shown as deep green arrows). it enters the lymph vessels by filtration through pores in the walls. It also includes the lymphoid tissue and lymphatic vessels through which the lymph travels in a one-way system in which lymph flows only toward the heart.. Lymph n. a clear watery sometimes faintly yellowish fluid derived from body tissues that contains white blood cells and circulates throughout the Lymphatic system n. the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the Lymph definition at dictionary.com a free online dictionary with pronunciation synonyms and translation. look it up now! Lymph explanation. information about lymph in free online english dictionary. what is. euplastic lymph fibrinous lymph that which tends to coagulate and become organized.. Lymph is a clear to yellowish watery fluid which is found throughout the body.. the circulation of lymph through the body is an important part of immune system health.. The lymph nodes make antibodies that will help keep you from being infected with a particular germ in the future. the lymph system is present throughout the body.. In lymphedema affected tissues the lymph is unable to drain properly.. as it travels through the body lymph passes through lymph nodes where it is filtered.. Lymph acts to remove bacteria and certain proteins from the tissues transport fat from the small intestine and supply mature lymphocytes to the blood..