Meaning of turn signal

turn' sig"nal

Pronunciation: [key]
  1. any of four signal lights on the front left, front right, rear left, and rear right of an automotive vehicle that, when actuated by the driver, flash in pairs on the side toward which a turn is to be made.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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