athyroidism

[ā-thīroi-dĭz′əm, ə-thī-]

n.

The absence of the thyroid gland or the suppression of its secretion.

Related formsa′thy•rotic (ā′thī-rŏtĭk, ăth′ī-) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.