Definition

Noun: 1. Electromagnetic radiation perceptible to the human eye: A form of energy that travels in waves and is the specific portion of the electromagnetic spectrum that can be detected by the human visual system, resulting in the sensation of sight. It is commonly referred to as "light."

Usage

• Visible radiation is the scientific term for what we commonly call "light."
• It is used in technical, scientific, and academic contexts, particularly in physics, astronomy, and optics.
• The term emphasizes the physical nature of light as part of the broader electromagnetic spectrum.

Examples

• The prism separates white visible radiation into its constituent colors.
• Plants use visible radiation from the sun for photosynthesis.
• Sensors on the satellite can detect both infrared and visible radiation.

Advanced Usage

• In technical specifications: The term is used to specify the type of light a device emits or detects.
  • The spectrometer analyzes the intensity of visible radiation reflected from the sample.
• Distinguishing from other radiation: It is used to contrast light with other forms of electromagnetic energy like radio waves or X-rays.
  • The atmosphere is transparent to visible radiation but opaque to certain infrared wavelengths.

Variants and Related Words

• Light (n): The common, everyday term for visible radiation. "Light" is less technical and more general.
• Visible light (n): A synonym that is slightly less formal than "visible radiation" but still precise.
• Electromagnetic radiation (n): The broader category that includes visible radiation, along with radio waves, microwaves, infrared, ultraviolet, X-rays, and gamma rays.

Synonyms

• Light
• Visible light

Antonyms

• Invisible radiation (e.g., infrared radiation, ultraviolet radiation)

Related Phrases and Concepts

• Spectrum of visible radiation: The range of wavelengths of visible radiation, typically from about 380 to 750 nanometers, perceived as different colors from violet to red.
• Source of visible radiation: Any object that emits light, such as the sun, a light bulb, or a flame.

Noun

1. (physics) electromagnetic radiation that can produce a visual sensation
   • the light was filtered through a soft glass window