/ Dictionary / Index B Boston Massacre: Meaning and Definition of Find definitions for: Bos'ton Mas'sacre Pronunciation: [key] — Amer. Hist. Amer. Hist. a riot in Boston (March 5, 1770) arising from the resentment of Boston colonists toward British troops quartered in the city, in which the troops fired on the mob and killed several persons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Boston marriage Boston rocker Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language