a gland in the upper thorax or neck of all vertebrates, involved in the production of lymphocytes: in humans, it is most prominent at puberty, after which it disappears or becomes vestigial
also thymus gland
Origin of thymusModern Latin ; from Classical Greek thymos, origin, originally , a warty excrescence
A small glandular organ that is situated behind the top of the breastbone, consisting mainly of lymphatic tissue and serving as the site of T cell differentiation. The thymus increases gradually in size and activity until puberty, after which it begins to atrophy.
Origin of thymusNew Latin, from Greek thumos, warty excrescence, thymus.
- Contrary to its English pronunciation, the Ï… in the Ancient Greek etymon Î¸ÏÎ¼Î¿Ï‚ (thumos) (whence the y in thymus) is short, implying the pronunciation thÄÊ¹mÉ™s.
From the Modern Latin thymus, from the Ancient Greek Î¸ÏÎ¼Î¿Ï‚ (thumos, “warty excrescence", (also, as used by Galen) “thymus gland").