an organ, residing within the lower neck area, which is a portion of the immune system. The thymus achieves maximum size at pubescence, then reduces in size. During infancy it is the place of development of lymphocytes.

THYMUS: "The tumor is attached to the exterior of the thymus."
Cite this page: N., Pam M.S., "THYMUS," in, April 29, 2013, (accessed October 19, 2021).