detector

[dɪˈtɛktər]

detector Definition

• 1. a device or substance for discovering the presence of something, especially a metal
• 2. a device for detecting the presence of electromagnetic waves, especially one that responds to radar signals and is used in aircraft navigation

Using detector: Examples

Take a moment to familiarize yourself with how "detector" can be used in various situations through the following examples!

• Example

  The smoke detector went off when it sensed smoke in the room.

• Example

  The metal detector beeped when it found a coin buried in the sand.

• Example

  The aircraft's detector warned the pilot of an incoming missile.

• Example

  The counterfeit detector revealed that the bill was fake.

detector Synonyms and Antonyms

Synonyms for detector

• sensor
• finder
• locator
• seeker

Phrases with detector

• lie detector

  a device used to detect whether someone is telling the truth or lying

  Example

  The suspect was hooked up to a lie detector to determine if he was guilty.

• metal detector

  a device that uses electromagnetic induction to detect metal objects

  Example

  The treasure hunter used a metal detector to search for buried artifacts.

• motion detector

  a device that detects movement, typically used in security systems

  Example

  The motion detector alerted the homeowner when someone entered the backyard.

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Summary: detector in Brief

A 'detector' [dɪˈtɛktər] is a device or substance used to discover the presence of something. It can refer to a metal detector, which beeps when it finds metal objects, or a smoke detector, which senses smoke and sounds an alarm. Other types of detectors include lie detectors, motion detectors, and counterfeit detectors.