/ Dictionary / Index T thyroiditis: Meaning and Definition of Find definitions for: thy•roid•i•tis Pronunciation: (thī"roi-dī'tis), [key] — n. Pathol. inflammation of the thyroid gland. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thyroiditis (Thesaurus) thyroid gland thyroid-stimulating hormone Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language