Definition

1. Noun:
   • Electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves: "Infrared light" refers to a type of invisible electromagnetic energy. It is felt as heat and is used in various technologies like remote controls, thermal imaging, and certain types of communication.

Usage Examples

• Noun:
  • The security camera uses infrared light to see in the dark.
  • Remote controls for televisions often transmit signals using infrared light.
  • Scientists study the universe by detecting infrared light from distant stars.

Advanced Usage

• "to detect infrared light": to sense or identify the presence of infrared radiation.
  • Some snakes can detect infrared light to locate warm-blooded prey.
• "to emit infrared light": to give off or produce infrared radiation.
  • All objects with a temperature above absolute zero emit infrared light.

Variants and Related Words

• Infrared (IR) (adj/n): A common abbreviation for infrared light or the infrared part of the spectrum.
  • The image was taken with an infrared camera.
• Infrared radiation (n): A more technical term synonymous with infrared light.
  • Infrared radiation is a form of energy transfer.

Synonyms

• Thermal radiation: Often used when referring to the heat-carrying property of infrared light.
• IR light: A common abbreviated form.

Related Phrases

• Infrared spectrum: The range of wavelengths that constitute infrared light.
  • Water vapor absorbs certain bands within the infrared spectrum.
• Near-infrared / Far-infrared: Subdivisions of the infrared spectrum based on wavelength.
  • Near-infrared light is closest to visible light, while far-infrared is closer to microwaves.

Related Concepts

• Electromagnetic spectrum: The full range of electromagnetic waves, of which infrared light is a part.
  • Infrared light occupies a specific position on the electromagnetic spectrum between visible light and microwaves.

Noun

1. electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves