/ Dictionary / Index B Borelli: Meaning and Definition of Find definitions for: Bo•rel•li Pronunciation: (bô-rel'ē, bu-It.bô-rel'lē), [key] 1608–79, Italian astronomer, physicist, and physiologist. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Borel-Lebesgue theorem borer Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language