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thymus

play
noun, thy·mus \ˈthī-məs\

Definition of thymus

plural thymuses also thymi play \-ˌmī\

  1. :  a glandular structure of largely lymphoid tissue that functions especially in the development of the body's immune system, is present in the young of most vertebrates typically in the upper anterior chest or at the base of the neck, and tends to atrophy in the adult



Origin of thymus

New Latin, from Greek thymos warty excrescence, thymus


First Known Use: 1578

Rhymes with thymus


Medical Dictionary

thymus

play
noun thy·mus \ˈthī-məs\

Medical Definition of thymus

plural thymuses also thymi \-ˌmī\play

  1. :  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



Variants of thymus

or thymus gland

Learn More about thymus

  1. Medical Dictionary: Definition of "thymus" Britannica.com: Encyclopedia article about "thymus"


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