/ Dictionary / Index B bank indicator: Meaning and Definition of Find definitions for: bank' in"dicator Pronunciation: [key] — Aeron. Aeron. a flight instrument that measures the angle of roll about an aircraft's horizontal axis, thereby indicating whether or not the aircraft is skidding or slipping. Also calledCf. bank-and-turn indicator. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bank holiday banking 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