n. The medical condition caused by the state of raised levels of thyroid hormone.
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
Word Usage
"The more thyroxin produced, the higher the BMR. If too much thyroxin is produced a condition known as thyrotoxicosis BMR can actually double."