Middle English, from Medieval Latin, from Latin, moon â more at lunar. This word doesn't usually appear in our free dictionary, but the definition from our premium Unabridged Dictionary is offered here on a limited basis.ote that some information is displayed differently in the Unabridged. To access the complete Unabridged Dictionary, with an additional 300,000 words that aren't in our free dictionary, start a free trial.
Prevalence and Impact of Thyroid Disease. More than 12 percent of the U.S. population will develop a thyroid condition during their lifetime. 1  An estimated 20 million Americans have some form of thyroid disease. 2  Up to 60 percent of those with thyroid disease are unaware of their condition. Hyperthyroidism, another form of thyroid disease, is a condition causing the gland to produce too much thyroid hormone. 2  Symptoms include irritability, nervousness, muscle weakness, unexplained weight loss, sleep disturbances, vision problems and eye irritation.
Radioactive iodine is given to over 70 percent of U.S. adults with hyperthyroidism, according to the American Thyroid Association. It effectively destroys the cells that produce hormones. Common side effects include dry mouth, dry eyes, sore throat, and changes in taste.