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Meaning of hypothyroidism

hy•po•thy•roid•ism

Pronunciation: (hī"pu-thī'roi-diz"um), [key]
— n. Pathol.
  1. deficient activity of the thyroid gland.
  2. the condition produced by a deficiency of thyroid secretion, resulting in goiter, myxedema, and, in children, cretinism.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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