thymus

noun thy·mus \ ˈthī-məs \
variants: or thymus gland
Updated on: 10 Nov 2017

Definition of thymus

plural thymuses also thymi play \-ˌmī\
: a glandular structure of largely lymphoid tissue that functions especially in cell-mediated immunity by being the site where T cells develop, is present in the young of most vertebrates typically in the upper anterior chest or at the base of the neck, and gradually decreases in size and activity after puberty

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Origin and Etymology of thymus

New Latin, from Greek thymos warty excrescence, thymus


Medical Dictionary

thymus

noun thy·mus \ ˈthī-məs \
variants: or thymus gland

medical Definition of thymus

plural thymuses also thymi play \-ˌmī\
: a glandular structure of largely lymphoid tissue that functions in cell-mediated immunity by being the site where T cells develop, that is present in the young of most vertebrates typically in the upper anterior chest or at the base of the neck, that arises from the epithelium of one or more embryonic branchial clefts, and that gradually decreases in size and activity after puberty

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