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thyroid gland n.
A two-lobed endocrine gland located in front of and on either side of the trachea and producing various hormones, such as calcitonin.
|thyroid gland |
A two-lobed gland that wraps around the trachea and is located at the base of the neck in vertebrate animals. The thyroid gland secretes two important hormones: thyroxine, which regulates the cell metabolism necessary for normal growth and development, and calcitonin, which stimulates the formation of bone and helps regulate the amount of calcium in the blood.