What does thymus mean?
A small organ in the chest, behind the sternum, that is part of the immune system in young animals, including humans, but is usually vestigial in adults. In histology, the thymus is a lymphoid organ.
Example
"The thymus is a vital part of the immune system in young children."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.