Meaning & Definition of word "Infrared"

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    Infrared

    /ˌɪnfrəˈrɛd/

    noun:

    • 1. Electromagnetic radiation with wavelengths longer than visible light.
      • Example: The infrared emitted by the heater warmed the room quickly.
    • 2. A type of radiation that is used in various applications such as thermal imaging.
      • Example: The study utilized infrared to gauge the temperature variations across the surface.

    adjective:

    • 1. Relating to or denoting electromagnetic radiation with wavelengths longer than visible light, typically between 700 nanometers and 1 millimeter.
      • Example: The infrared camera can detect heat emitted from living organisms.
    • 2. Referring to a portion of the spectrum of light that is not visible to the human eye.
      • Example: Infrared technology is used in remote controls to communicate with devices.

    Etymology

    From Latin 'infra-' meaning 'below' and 'red', referring to the wave lengths below the visible red spectrum.

    Common Phrases and Expressions

    infrared spectroscopy:

    A technique used to identify and study chemicals based on their absorption of infrared light.

    infrared camera:

    A device used to capture images based on infrared radiation.

    infrared sauna:

    A type of sauna that uses infrared heaters to emit heat directly to the body.

    Related Words

    electromagnetic spectrum:

    The range of all types of electromagnetic radiation.

    thermal imaging:

    The technique of using infrared cameras to detect heat.

    Slang Meanings of infrared

    Meaning: Used informally to refer to anything that is hidden or not immediately visible.

    Example Sentence: He's got some infrared moves when it comes to sneaking around.

    Meaning: Refers to the use of thermal technology in a casual manner.

    Example Sentence: Let’s use infrared for some of our night missions, it’s way cooler!