Pronunciation: (THY-mus)

An organ that is part of the lymphatic system, in which T lymphocytes grow and multiply. The thymus is in the chest behind the breastbone.

Definition from:

Anatomy of the thymus gland. The thymus gland is a small organ that lies in the upper chest under the breastbone. It makes white blood cells, called lymphocytes, which protect the body against infections.Anatomía del timo. El timo es un órgano pequeño ubicado en la parte superior del pecho, bajo el esternón. Elabora glóbulos blancos, que se llaman linfocitos; estos protegen el cuerpo contra las infecciones. Date last modified: 2012-05-24Thymoma and Thymic Carcinoma Timoma y carcinoma tímico