from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An abnormal increase in parathyroid gland activity
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. excessive secretion of parathyroid hormone resulting in abnormally high levels of calcium in the blood; can affect many systems of the body (especially causing bone resorption and osteoporosis)
hyper- + parathyroid + -ism (Wiktionary)