Trafficator vs. Indicator

Trafficatornoun

A blinking light on a motor vehicle that indicates the direction in which it is about to turn.

Indicatornoun

A pointer or index that indicates something.

Trafficatornoun

(historical) A semaphore device with a steady light that served the same purpose on early vehicles.

Indicatornoun

A meter or gauge.

Trafficatornoun

a blinking light on a motor vehicle that indicates the direction in which the vehicle is about to turn

Indicatornoun

The needle or dial on such a meter.

Trafficatornoun

an obsolete kind of signalling device on the side of a motor vehicle, having the form of a small illuminated pointer which could be extended to indicate a change of direction.

Indicatornoun

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

Indicatornoun

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

Indicatornoun

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

Indicatornoun

A trafficator (dated definition); 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.

Indicatornoun

A bird, the honeyguide.

Indicatornoun

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

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

Indicatornoun

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

Indicatornoun

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

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.

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

Indicatornoun

a signal for attracting attention

Indicatornoun

a device for showing the operating condition of some system

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

Indicatornoun

a thing that indicates the state or level of something

‘car ownership is frequently used as an indicator of affluence’;

Indicatornoun

an animal or plant species that can be used to infer conditions in a particular habitat

‘the raccoon is a poor choice as an indicator of riparian habitat’;

Indicatornoun

a gauge or meter of a specified kind

‘an altitude indicator’; ‘a speed indicator’;

Indicatornoun

a flashing light or (formerly) other device on a vehicle to show that it is about to change lanes or turn.

‘an indicator light’;

Indicatornoun

a board or screen in a railway station, airport, etc. giving current information

‘the indicator board’;

Indicatornoun

a compound that changes colour at a specific pH value or in the presence of a particular substance, and can be used to monitor acidity, alkalinity, or the progress of a reaction

‘the remaining alkali is titrated against standard acid using phenolphthalein as indicator’;