Definition of "indicator" []

• One that indicates, especially: (noun)
• A pointer or an index. (noun)
• An instrument used to monitor the operation or condition of an engine, furnace, electrical network, reservoir, or other physical system; a meter or gauge. (noun)
• The needle, dial, or other registering device on such an instrument. (noun)
• Chemistry Any of various substances, such as litmus or phenolphthalein, that indicate the presence, absence, or concentration of another substance or the degree of reaction between two or more substances by means of a characteristic change, especially in color. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Another indicator is the 2006 Zogby poll that found 67 percent of citizens wanted immigration decreased so we can assimilate those already here."
• "Another indicator is an e-mail from AIWF and the Dallas Farmers Market outlining their fall line-up of cooking classes."
• "But the really troubling part of this indicator is the large number of countries with less than one line per 100 people."