• (RP) IPA: /ˈθaɪ̯ɹɔɪ̯d/
  • (GA) IPA: /ˈθaɪ̯ɹɔɪ̯d/

thyroid (not comparable)

  1. (anatomy) Of, relating to, or being the thyroid gland.
    1. Suggestive of a disordered thyroid gland.
      a thyroid personality
  2. (anatomy) Of, relating to, or being the chief cartilage of the larynx.
    thyroid cartilage

thyroid (plural thyroids)

  1. (anatomy) The thyroid gland.
    • Israel is one of the few countries that widely fluoridates, besides the United States, Canada, Ireland, New Zealand and Australia. Fluoridation, the addition of fluoride to public drinking water supplies to reduce cavities, is the subject of intense controversy, especially outside of the United States. But opposition to the practice, on the grounds that fluoride has adverse effects on the thyroid, brain and bones, and is an unethical form of mass-medication, appears to be growing.
    1. (medicine) An extract prepared from the thyroid gland of animals and used in treating deficiency of thyroid hormones ↗.
  2. (anatomy) The thyroid cartilage.

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