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Definitions

American Heritage® Dictionary of the English Language, Fourth Edition

  1. n. The thyroid gland.
  2. n. The thyroid cartilage.
  3. n. A dried, powdered preparation of the thyroid gland of certain domestic animals, used in treatment of hypothyroid conditions.
  4. n. An artery, a vein, a nerve, or another part associated with the thyroid gland or thyroid cartilage.

Century Dictionary and Cyclopedia

  1. Shield-shaped. Specifically— In anatomy, noting the largest and principal one of the several cartilages of the larynx, and several associated parts; also, noting the obturator foramen and obturator membrane.
  2. Superior, a branch of the external carotid, distributed to the sternothyroid, sternohyoid, and omohyoid muscles and the thyroid body, and giving off the hyoid, sternomastoid, laryngeal, and cricothyroid branches.
  3. Inferior, a branch of the thyroid axis, passing beneath the great cervical vessels to be distributed to the lower part of the thyroid body, to the scalenus anticus, longus colli, inferior constrictor, and the infrahyoid muscles, and giving off the ascending cervical, inferior laryngeal, tracheal, and esophageal branches.
  4. n. The thyroid cartilage.
  5. n. The thyroid gland.
  6. n. A thyroid artery, vein, or nerve.

Wiktionary

  1. n. The thyroid gland.
  2. n. The thyroid cartilage.
  3. n. A preparation obtained from the thyroid gland.

GNU Webster's 1913

  1. adj. Shaped like an oblong shield; shield-shaped.
  2. adj. Of or pertaining to the thyroid body, thyroid cartilage, or thyroid artery; thyroideal.

WordNet 3.0

  1. n. located near the base of the neck
  2. adj. of or relating to the thyroid gland
  3. adj. suggestive of a thyroid disorder

Etymologies

  1. Greek thureoeidēs : thureos, oblong shield (from thurā, door; see dhwer- in Indo-European roots) + -oeidēs, -oid.

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‘thyroid’ has been looked up 905 times, added to 7 lists, and has a Scrabble score of 14.