indicator

noun

in·di·ca·tor | \ ˈin-də-ˌkā-tər

Definition of indicator

1 : one that indicates: such as

a : an index hand (as on a dial) : pointer

b(1) : gauge sense 2b, dial sense 4a

(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

2a : 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)

b : tracer sense 4b

3 : an organism or ecological community so strictly associated with particular environmental conditions that its presence is indicative of the existence of these conditions

4 : any of a group of statistical values (such as level of employment) that taken together give an indication of the health of the economy

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Synonyms for indicator

Synonyms

hand, index, needle, pointer

Examples of indicator in a Sentence

Economic indicators suggest that prices will go up. a control panel with various indicator lights

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Time Traveler for indicator

The first known use of indicator was in 1666

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More Definitions for indicator

indicator

noun

English Language Learners Definition of indicator

: a sign that shows the condition or existence of something

: a pointer or light that shows the state or condition of something

: a device that shows a measurement

See the full definition for indicator in the English Language Learners Dictionary

indicator

noun

in·di·ca·tor | \ ˈin-də-ˌkā-tər

Kids Definition of indicator

1 : a sign that shows or suggests the condition or existence of something

2 : a pointer on a dial or scale

3 : dial entry 1 sense 3, gauge

indicator

noun

in·di·ca·tor | \ ˈin-də-ˌkāt-ər

Medical Definition of indicator

: 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