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Any of usually four small kidney-shaped glands that lie in pairs near or within the posterior surface of the thyroid gland and secrete parathyroid hormone.
(Anatomy) any one of the small egg-shaped endocrine glands situated near or embedded within the thyroid gland: they secrete parathyroid hormone
any of several small paired glands in vertebrates, usu. lying near or embedded in the thyroid gland, that secrete parathyroid hormone.
Any of four kidney-shaped glands located behind or within the thyroid gland of many vertebrate animals. The parathyroid glands secrete a hormone (called parathyroid hormone) that regulates the amount of calcium in the blood.
Any of four pea-sized endocrine glands on the thyroid gland. They produce parathyroid hormone.