thyroid hormone

Definitions of thyroid hormone
  1. noun
    any of several closely related compounds that are produced by the thyroid gland and are active metabolically
    see moresee less
    calcitonin, thyrocalcitonin
    thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone
    T, tetraiodothyronine, thyroxin, thyroxine
    hormone produced by the thyroid glands to regulate metabolism by controlling the rate of oxidation in cells
    T, liothyronine, triiodothyronine
    thyroid hormone similar to thyroxine but with one less iodine atom per molecule and produced in smaller quantity; exerts the same biological effects as thyroxine but is more potent and briefer
    type of:
    endocrine, hormone, internal secretion
    the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week