adjective Pathology.
  1. of or relating to a condition caused by excessive thyroid hormone in the system, usually resulting from overactivity of the thyroid gland.

Origin of thyrotoxic

First recorded in 1900–05; thyro- + toxic
Related formsthy·ro·tox·ic·i·ty [thahy-roh-tok-sis-i-tee] /ˌθaɪ roʊ tɒkˈsɪs ɪ ti/, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

thyrotoxicity in Medicine


  1. Characterizing the state that is produced by excessive quantities of thyroid hormone.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.