A small tube. There are several named tubules in the body: examples include convoluted tubules in the NEPHRON of the kidney (see KIDNEYS) and the seminiferous tubules in the testes (see TESTICLE). Health Source: Medical Dictionary Author: Health Dictionary
n. (in anatomy) a small cylindrical hollow structure. See also renal tubule; seminiferous tubule. Health Source: Oxford | Concise Colour Medical Dictionary Author: Jonathan Law, Elizabeth Martin