They are called either lymph ducts or lymph capillaries.
Thoracic Duct
One lymphatic vessel leaves a node.One, Single, 1
Thoracic duct
the walls of lymphatic vessels are similar to those of veins
Afferent lymphatic vessels
Lymphnodes
Lacteal
A vessel that, unlike a blood vessel, carries fluid only away from tissues. This fluid is a pale, watery substance known as lymph.The smallest lymph vessels are the lymph capillaries, which begin in the tissue spaces as blind-ended sacs. Lymph capillaries are found in all regions of the body except the bone marrow, central nervous system, and tissues, such as the epidermis, that lack blood vessels. They are especially numerous in the loose connective tissues under the epithelium of the skin and mucous membranes.
Thoracic duct is a part of Lymphatic System.
Interstitial fluid that enters a lymphatic vessel contains waste products, nutrients, proteins, and white blood cells. It is filtered and purified as it travels through the lymphatic system, eventually returning to the bloodstream.
A blind-ended vessel is a vessel that is closed at one end, or has a 'dead end'. They can be found in the lymphatic system, for example.
An efferent vessel typically empties into a larger blood vessel or structure, such as a vein or lymphatic duct, depending on its function. In the context of the circulatory system, efferent vessels carry blood away from an organ or tissue, such as the efferent arterioles that transport blood away from the kidneys. In the lymphatic system, efferent lymphatic vessels drain lymph from lymph nodes into larger lymphatic trunks.