- Thymus, genus Thymus - large genus of Old World mints: thyme
--1 is a kind of asterid dicot genus
--1 is a member of
--1 has members: thymeLabiatae, family Labiatae, Lamiaceae, family Lamiaceae, mint family - thymus gland, thymus - a ductless glandular organ at the base of the neck that produces lymphocytes and aids in producing immunity; atrophies with age
--2 is a kind of endocrine gland, endocrine, ductless gland
--2 is a part of neck, cervix; immune system