Organs in the body that produce and secrete substances such as hormones, enzymes, or other fluids. They can be endocrine (secreting into bloodstream) or exocrine (secreting through ducts).
From Latin glandula, diminutive of glans meaning 'acorn,' referring to the acorn-like shape of certain glands like lymph nodes. The anatomical term entered English in the 14th century through medical Latin texts.
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