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Definition of Thyroid
1. Noun. Located near the base of the neck.
Exact synonyms: Thyroid Gland
Generic synonyms: Ductless Gland, Endocrine, Endocrine Gland
Derivative terms: Thyroidal
Generic synonyms: Ductless Gland, Endocrine, Endocrine Gland
Derivative terms: Thyroidal
2. Adjective. Of or relating to the thyroid gland. "Thyroidal uptake"
3. Adjective. Suggestive of a thyroid disorder. "Thyroid personality"
Partainyms: Thyroid Gland
Definition of Thyroid
1. a. Shaped like an oblong shield; shield-shaped; as, the thyroid cartilage.
Definition of Thyroid
1. an endocrine gland [n -S]
Medical Definition of Thyroid
1. A butterfly-shaped endocrine gland in the neck that is found on both sides of the trachea (windpipe). It secretes the hormone thyroxine which controls the rate of metabolism. (27 Sep 1997)