indicator

noun

in·​di·​ca·​tor ˈin-də-ˌkā-tər How to pronounce indicator (audio)
1
: one that indicates: such as
a
: an index hand (as on a dial) : pointer
(2)
: an instrument for automatically making a diagram that indicates the pressure in and volume of the working fluid of an engine throughout the cycle
2
: any of a group of statistical values (such as level of employment) that taken together give an indication of the health of the economy
3
a
: a substance (such as litmus) used to show visually (as by change of color) the condition of a solution with respect to the presence of a particular material (such as a free acid or alkali)
4
: an organism or ecological community so strictly associated with particular environmental conditions that its presence is indicative of the existence of these conditions
indicatory adjective

Examples of indicator in a Sentence

Economic indicators suggest that prices will go up. a control panel with various indicator lights
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But throughout 2024, all eyes remained trained on the U.S. election as the most important indicator of global democracy’s future. Larry Diamond, Foreign Affairs, 8 Nov. 2024 The news came just days after S&P Dow Jones Indices announced that Nvidia is replacing rival chipmaker Intel in the Dow Jones Industrial Average, a 30-member index that’s often viewed as a key indicator of the U.S. stock market. Ashton Jackson, CNBC, 5 Nov. 2024 The state was, and mostly still is, expected to vote for Trump comfortably, but the poll was notable because observers viewed it as a strong indicator of how Iowa and the country as a whole may vote. Jared Gans, The Hill, 5 Nov. 2024 The economy is top of mind for American voters, despite a number of positive economic indicators: inflation has fallen, and the economy grew 2.8% in the third quarter. Danielle Chemtob, Forbes, 5 Nov. 2024 See all Example Sentences for indicator 

Word History

First Known Use

1666, in the meaning defined at sense 1

Time Traveler
The first known use of indicator was in 1666

Dictionary Entries Near indicator

Cite this Entry

“Indicator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/indicator. Accessed 1 Dec. 2024.

Kids Definition

indicator

noun
in·​di·​ca·​tor ˈin-də-ˌkāt-ər How to pronounce indicator (audio)
1
: one that indicates: as
a
: a pointer on a dial or scale
2
: a substance used to show visually (as by change of color) the presence of acid or base in a solution

Medical Definition

indicator

noun
in·​di·​ca·​tor ˈin-də-ˌkāt-ər How to pronounce indicator (audio)
: a substance (as a dye) used to show visually (as by a change in color) the condition of a solution with respect to the presence of a particular material (as a free acid or alkali)
litmus and phenolphthalein are acid-base indicators

More from Merriam-Webster on indicator

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