exposure meter definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Photog. an instrument that measures the intensity of light striking, or reflecting from, the subject, used to find the correct exposure settings; light meter
exposure meter definition by American Heritage Dictionary
A photoelectric instrument that measures the light intensity in a given area and, in photographic use, indicates the correct settings for an optimum exposure. Also called light meter.