# indicator
## English
### Etymology

From Late Latin indicātor (“one who points out”), from Latin indicō (“point out”); see indicate.

### Pronunciation

* (UK) IPA: /ˈɪn.dɪˌkeɪ.tə(ɹ)/
* Audio (General Australian):(file)

### Noun

indicator (plural indicators)
* A pointer or index that indicates something.
** 1954 November, “Train Arrival Indicators at Euston”, in Railway Magazine, page 738:The visual indicators are a decided improvement, and have reduced the telephoning by the staff in the signalbox.
** 2012, Andrew Martin, Underground Overground: A passenger's history of the Tube, Profile Books, →ISBN, page 79:These old indicators [at Earl's Court station] show the destination of the next train by the appearance of an illuminated arrow next to the station name. The arrow may indicate that a train is going to Wimbledon, but it gives no clue as to when. Now, however, the indicators are supplemented by dot matrix panels that not only say where but also when. Why aren't the old ones removed? Because they, like the whole station, are Grade II listed.
* A meter or gauge.
* The needle or dial on such a meter.
* (chemistry) Any of many substances, such as litmus, used to indicate the concentration of a substance, or the degree of a reaction.
* (ecology) A plant or animal whose presence is indicative of some specific environment.
* (economics) A measure, such as unemployment rate, which can be used to predict economic trends.
* (UK, Australia, New Zealand, Ireland, South Africa, automotive) A turn signal; each of the flashing lights on each side of a vehicle which indicate a turn is being made to left or right, or a lane change etc.
    Synonyms: (informal) blinker, directional, directional signal, direction indicator, trafficator, turn indicator, (chiefly US) turn signal
* A bird, the honeyguide.
* (crosswording) A codeword that marks the use of a specific cryptic device.
** 2011 December 9, Collins, Crossword Secrets (Collins Little Book), HarperCollins UK, →ISBN, page 6:'Wild' is an anagram indicator showing that the letters of 'danger' have to be rearranged.
** 2012 October 15, Denise Sutherland, Solving Cryptic Crosswords For Dummies, John Wiley & Sons, →ISBN, page 46:We surrounded the strike, Snowy (5) Snowy is the definition in this clue. Ignore the punctuation and capital letter of Snowy! Surrounded is the container indicator.
** 2020 August 20, Telegraph Media Group Ltd, The Telegraph: How To Solve a Cryptic Crossword: Mastering cryptic crosswords made easy, Hachette UK, →ISBN, page 23:We have already mentioned 'in' having multiple uses; 'round' or 'around' might be a container indicator or a reversal indicator; 'without' might be a container indicator or a deletion indicator, and so on.

#### Derived terms

* acid-base indicator
* airspeed indicator
* anagrind
* attitude indicator
* bank-and-turn indicator
* bite indicator
* Burrell indicator
* chemical indicator
* coincident indicator
* concurrent indicator
* dial indicator
* economic indicator
* global indicator
* indicator card
* indicator diagram
* indicator function
* indicator lamp
* indicator light
* indicator variable
* key performance indicator
* leading indicator
* ordinal indicator
* pH indicator
* rate of climb indicator
* rate-of-climb indicator
* redox indicator
* route indicator
* tactile ground surface indicator
* tactile walking surface indicator
* tone indicator
* turn-and-bank indicator
* wetness indicator

#### Related terms

* index
* indicate
* indication
* indicative

#### Translations
### Further reading

* “indicator”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
* William Dwight Whitney, Benjamin E[li] Smith, editors (1911), “indicator”, in The Century Dictionary […], New York, N.Y.: The Century Co., →OCLC.

### Anagrams

* anidrotic, cardiotin

## Dutch
### Etymology

Equivalent to indiceren +‎ -ator.

### Pronunciation

* Audio:(file)
* Hyphenation: in‧di‧ca‧tor

### Noun

indicator m (plural indicatoren or indicators)
* indicator

## Latin
### Etymology

From indicō (“point out, indicate, show”) +‎ -tor, from in (“in, at, on; into”) + dicō (“indicate; dedicate; set apart”).

### Pronunciation

* (Classical Latin) IPA: /in.diˈkaː.tor/, [ɪn̪d̪ɪˈkäːt̪ɔr]
* (modern Italianate Ecclesiastical) IPA: /in.diˈka.tor/, [in̪d̪iˈkäːt̪or]

### Noun

indicātor m (genitive indicātōris); third declension
* (Late Latin) Someone who points out.

#### Declension

Third-declension noun.

#### Related terms

* index
* indicābilis
* indicātiō
* indicātīvus
* indicātūra
* indicīna
* indicium
* indicō
* indiculum

#### Descendants

* → Catalan: indicador
* → English: indicator
* → French: indicateur
* → Galician: indicador
* → Italian: indicatore
* → Portuguese: indicador
* → Romanian: indicator
* → Russian: индика́тор (indikátor)
* → Spanish: indicador

### Verb

indicātor
* second/third-person singular future passive imperative of indicō

### References

* “indicator”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
* "indicator", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
* indicator in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.

## Romanian
### Etymology

Borrowed from French indicateur. Equivalent to indica +‎ -tor.

### Noun

indicator m (plural indicatori)
* indicator (pointer, index, substance)

#### Declension
### Noun

indicator n (plural indicatoare)
* traffic sign

#### Declension
## Spanish
### Pronunciation

* IPA: /indikaˈtoɾ/ [ĩn̪.d̪i.kaˈt̪oɾ]
* Rhymes: -oɾ
* Syllabification: in‧di‧ca‧tor

### Noun

indicator m (plural indicatores)
* honeyguide