#thoracic_duct  the major duct of the lymphatic system
  supertype:  lymph_vessel__lymphvessel__lymphatic_vessel__lymphaticvessel  a vascular duct that carries lymph which is eventually added to the venous blood circulation
  part of:  lymphatic_system__lymphaticsystem__systema_lymphaticum  the interconnected system of spaces and vessels between body tissues and organs by which lymph circulates throughout the body
     part of:  body__organic_structure__organicstructure__physical_structure  the entire physical structure of an organism (especially an animal or human being); "he felt as if his whole body were on fire"

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