from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A condition resulting from excessive concentrations of thyroid hormones in the body, as in hyperthyroidism.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The medical condition caused by the state of raised levels of thyroid hormone.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an overactive thyroid gland; pathologically excessive production of thyroid hormones or the condition resulting from excessive production of thyroid hormones
thyro- + toxicosis (Wiktionary)