Breadcrumb Home > Dictionary > Index B B battery: Meaning and Definition of Find definitions for: B battery Pronunciation: [key] — Electronics. Electronics. an electric battery for supplying a constant, positive voltage to the plate of a vacuum tube. Cf. A battery, C battery. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. B.B.A. BBB TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: recherch Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language