noun

1. any organ or specialized group of cells that produces secretions, as insulin or bile, or excretions, as urine: some glands, as the liver and kidneys, have ducts that empty into an organ: the ductless (or endocrine) glands, as the thyroid and adrenals, secrete hormones
2. loosely any similar structure that is not a true gland lymph glands
3. Bot. an organ or layer of cells that produces and secretes some substance

Etymology: Fr glande < OFr glandre < L glandula, tonsil, dim. of glans (gen. glandis), acorn (< IE base *gwel-, oak, acorn > Gr balanos)

noun

Etymology: < ?