Definition

Noun: The range of electromagnetic wave frequencies that are lower than those of visible light but higher than those of microwave radiation. This frequency range corresponds to the infrared region of the electromagnetic spectrum, often associated with heat radiation.

Usage

This term is used in scientific and technical contexts to describe a specific band of non-visible radiation. * The remote control communicates with the television using an infrared frequency. * Astronomers study celestial objects by observing their emitted infrared frequency radiation. * The sensor is designed to detect motion based on changes in infrared frequency.

Advanced Usage

• "to emit in the infrared frequency": To radiate energy within this specific band of the spectrum.
  • Warm objects naturally emit in the infrared frequency.

Variants and Related Words

• Infrared (adj/n): Pertaining to or being the infrared part of the spectrum.
  • Infrared light is invisible to the human eye.
• IR (abbreviation): A common shorthand for "infrared".
• Thermal radiation: A term often used synonymously with infrared radiation, emphasizing its association with heat.

Synonyms

• Infrared radiation
• IR radiation
• Thermal radiation (in context)

Related Phrases

• Infrared spectrum: The full range of infrared wavelengths or frequencies.
  • The chemical's bonds were identified by analyzing its infrared spectrum.
• Infrared band: A specific segment within the infrared frequency range.
  • This communication protocol uses a different infrared band.

Noun

1. the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range
   • they could sense radiation in the infrared