单词 | thymus |
释义 | thy·mus (thīməs) n. pl. thy·mus·es 1. 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. 2. A similar structure in other vertebrate animals. [New Latin, from Greek thumos, warty excrescence, thymus.] |
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