/ Dictionary / Index B betamethasone: Meaning and Definition of Find definitions for: be•ta•meth•a•sone Pronunciation: (bā"tu-meth'u-sōn" or, esp. Brit., bē"-), [key] — n. Pharm. a synthetic analogue of a glucocorticoid, CHFO, used in various forms in the treatment of inflammation, allergies, and tumors, and for replacement therapy in adrenal insufficiency. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. beta line betamethyl acrolein Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language