from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A thyroid protein that is the precursor to iodine-containing hormones and is typically present in the colloid of thyroid gland follicles.
- n. A substance extracted from the thyroid glands of hogs, formerly used as a thyroid hormone supplement to treat hypothyroidism.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A globulin, produced by the thyroid gland, that has a role in the production of the thyroid hormones
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an iodine containing protein that is obtained from the thyroid gland and exhibits the general properties of the globulins
thyro- + globulin (Wiktionary)