What does indicator mean?

Definitions for indicator
ˈɪn dɪˌkeɪ tərin·di·ca·tor

Here are all the possible meanings and translations of the word indicator.

Princeton's WordNet

  1. index, index number, indicant, indicatornoun

    a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time

  2. indicatornoun

    a signal for attracting attention

  3. indicatornoun

    a device for showing the operating condition of some system

  4. indicatornoun

    (chemistry) a substance that changes color to indicate the presence of some ion or substance; can be used to indicate the completion of a chemical reaction or (in medicine) to test for a particular reaction


  1. indicatornoun

    A pointer or index that indicates something.

    Etymology: From indicator, from indico; see indicate.

  2. indicatornoun

    A meter or gauge.

    Etymology: From indicator, from indico; see indicate.

  3. indicatornoun

    The needle or dial on such a meter.

    Etymology: From indicator, from indico; see indicate.

  4. indicatornoun

    Any of many substances, such as litmus, used to indicate the concentration of a substance, or the degree of a reaction.

    Etymology: From indicator, from indico; see indicate.

  5. indicatornoun

    A plant or animal whose presence is indicative of some specific environment.

    Etymology: From indicator, from indico; see indicate.

  6. indicatornoun

    A measure, such as unemployment rate, which can be used to predict economic trends.

    Etymology: From indicator, from indico; see indicate.

  7. indicatornoun

    A trafficator.

    Etymology: From indicator, from indico; see indicate.

Webster Dictionary

  1. Indicatornoun

    one who, or that which, shows or points out; as, a fare indicator in a street car

    Etymology: [L.: cf. F. indicateur.]

  2. Indicatornoun

    a pressure gauge; a water gauge, as for a steam boiler; an apparatus or instrument for showing the working of a machine or moving part

    Etymology: [L.: cf. F. indicateur.]

  3. Indicatornoun

    an instrument which draws a diagram showing the varying pressure in the cylinder of an engine or pump at every point of the stroke. It consists of a small cylinder communicating with the engine cylinder and fitted with a piston which the varying pressure drives upward more or less against the resistance of a spring. A lever imparts motion to a pencil which traces the diagram on a card wrapped around a vertical drum which is turned back and forth by a string connected with the piston rod of the engine. See Indicator card (below)

    Etymology: [L.: cf. F. indicateur.]

  4. Indicatornoun

    a telltale connected with a hoisting machine, to show, at the surface, the position of the cage in the shaft of a mine, etc

    Etymology: [L.: cf. F. indicateur.]

  5. Indicatornoun

    the part of an instrument by which an effect is indicated, as an index or pointer

    Etymology: [L.: cf. F. indicateur.]

  6. Indicatornoun

    any bird of the genus Indicator and allied genera. See Honey guide, under Honey

    Etymology: [L.: cf. F. indicateur.]

  7. Indicatornoun

    that which indicates the condition of acidity, alkalinity, or the deficiency, excess, or sufficiency of a standard reagent, by causing an appearance, disappearance, or change of color, as in titration or volumetric analysis

    Etymology: [L.: cf. F. indicateur.]


  1. Indicator

    In various contexts of science, technology, and manufacturing, an indicator is any of various instruments used to accurately measure small distances and angles, and amplify them to make them more obvious. The name comes from the concept of indicating to the user that which their naked eye cannot discern; such as the presence, or exact quantity, of some small distance. Many indicators have a dial display, in which a needle points to graduations in a circular array around the dial. Such indicators, of which there are several types, therefore are often called dial indicators. Non-dial types of indicators include mechanical devices with cantilevered pointers and electronic devices with digital displays. Indicators may be used to check the variation in tolerance during the inspection process of a machined part, measure the deflection of a beam or ring under laboratory conditions, as well as many other situations where a small measurement needs to be registered or indicated. Dial indicators typically measure ranges from 0.25mm to 300mm, with graduations of 0.001mm to 0.01mm or 0.00005in to 0.001in.

The Standard Electrical Dictionary

  1. Indicator

    (a) An apparatus for indicating the condition of a distant element, such as the water level in a reservoir, the temperature of a drying room or cold storage room or any other datum. They are of the most varied constructions. (b) The receiving instrument in a telegraph system is sometimes thus termed.

Dictionary of Military and Associated Terms

  1. indicator

    In intelligence usage, an item of information which reflects the intention or capability of an adversary to adopt or reject a course of action.

Military Dictionary and Gazetteer

  1. indicator

    An invention of Gen. Wingate, of the New York Militia, for instructing men in aiming the musket. A steel rod passing through a brass tompon in the muzzle is projected forwards by the firing-pin. The rod carries a sharp point in the line of the sights, which punctures a miniature target a foot or so in front of the muzzle.

Editors Contribution

  1. indicator

    A type of device created and designed in various colors, materials, mechanisms, shapes, sizes and technology to indicate.

    The vehicle indicator did give an accurate signal so the other drives could see the intention.

    Submitted by MaryC on March 9, 2020  

British National Corpus

  1. Nouns Frequency

    Rank popularity for the word 'indicator' in Nouns Frequency: #1880

How to pronounce indicator?

How to say indicator in sign language?


  1. Chaldean Numerology

    The numerical value of indicator in Chaldean Numerology is: 1

  2. Pythagorean Numerology

    The numerical value of indicator in Pythagorean Numerology is: 3

Examples of indicator in a Sentence

  1. Western University:

    This fireball likely dropped a small number of meteorites in the Bancroft area, specifically near the small town of Cardiff. We suspect meteorites made it to the ground because the fireball ended very low in the atmosphere just to the west of Bancroft and slowed down significantly. This is a good indicator that material survived.

  2. Lynn Vavreck:

    People have created this character out of college-educated women, because they seem to be the leading indicator of this decline for the Republican Party, but the story is about white college-educated people and white women.

  3. Christopher Huff:

    It would be devastating, if what's happening now translates into an electoral defeat in November, that would be an indicator that what's been going on may have lacked a grounding to effect long-term change.

  4. Krishnan Bhaskaran:

    BMI is a key indicator of health. We know that BMI is linked to the risk of dying overall, but surprisingly little research has been conducted on the links to deaths from specific causes.

  5. Angela Berry:

    We can’t change the past, but he was not sentenced to life without the possibility of parole, to justify denying it based on the gravity of the crime and the fact that it disenfranchised millions of Americans is ignoring the rehabilitation that has occurred and that rehabilitation is a more relevant indicator of whether or not a person is still a risk to society.

Images & Illustrations of indicator

  1. indicatorindicatorindicatorindicatorindicator

Popularity rank by frequency of use


Translations for indicator

From our Multilingual Translation Dictionary

  • مؤشّرArabic
  • индикаторBulgarian
  • ukazatelCzech
  • Blinker, Indikator, Anzeige, Fahrtrichtungsanzeiger, ZeigerGerman
  • μετρητής, δείκτης, δείκτης πορείαςGreek
  • indicadorSpanish
  • suuntavilkku, indikaattori, osoitin, indikaattorilaji, mittari, mittalaiteFinnish
  • clignotant, indicateur, signofile, aiguilleFrench
  • index, irányjelzőHungarian
  • frecciaItalian
  • 針, インジケータ, インジケーター, 方向指示器, 指示薬Japanese
  • indicatorLatin
  • indikator, retningsviser, viser, blinkelys, målerNorwegian
  • wskaźnikPolish
  • indicator, semnalizatorRomanian
  • индикатор, поворотник, указатель, стрелкаRussian
  • žmigavac, migavacSerbo-Croatian
  • indikator, blinker, körriktningsvisare, mätareSwedish
  • సూచికTelugu
  • ไฟเลี้ยวThai
  • gTurkish

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    expressing yourself easily or characterized by clear expressive language
    • A. arbitrary
    • B. articulate
    • C. contiguous
    • D. proprietary

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