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- Dictionarylight/lʌɪt/
noun
- 1. the natural agent that stimulates sight and makes things visible: "the light of the sun" Similar Opposite
- 2. an expression in someone's eyes indicating a particular emotion or mood: "a shrewd light entered his eyes"
verb
- 1. provide with light or lighting; illuminate: "the room was lit by a number of small lamps"
- 2. make (something) start burning; ignite: "Allen gathered sticks and lit a fire"
adjective
- 1. having a considerable or sufficient amount of natural light; not dark: "the bedrooms are light and airy" Similar Opposite
- 2. (of a colour) pale: "her eyes were light blue" Similar Opposite
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the brightness that comes from the sun, fire, etc. and from electrical devices, and that allows things to be seen: a bright light. fluorescent / ultraviolet light. a beam / ray of light. Light was streaming in through the open door. It's a north-facing room so it doesn't get much light (= brightness from the sun).
1. a. : something that makes vision possible. b. : the sensation aroused by stimulation of the visual receptors. c. : electromagnetic radiation of any wavelength that travels in a vacuum with a speed of 299,792,458 meters (about 186,000 miles) per second. specifically : such radiation that is visible to the human eye. 2.
Light definition: something that makes things visible or affords illumination. See examples of LIGHT used in a sentence.
Jul 19, 2024 · light, electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays with wavelengths less than about 1 × 10 −11 metre to radio waves measured in metres.
Light is the brightness that lets you see things. Light comes from sources such as the sun, moon, lamps, and fire.
Light, visible light, or visible radiation is electromagnetic radiation that can be perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400–700 nanometres (nm), corresponding to frequencies of 750–420 terahertz.
LIGHT definition: 1. the brightness that shines from the sun, from fire, or from electrical equipment, allowing you…. Learn more.
Definitions of light. noun. (physics) electromagnetic radiation that can produce a visual sensation. “the light was filtered through a soft glass window” synonyms: visible light, visible radiation. see more. noun. the quality of being luminous; emitting or reflecting light. synonyms: brightness, brightness level, luminance, luminosity, luminousness
noun. /laɪt/ Idioms. from sun/lamps. [uncountable]the energy from the sun, a lamp, etc. that makes it possible to see things. bright/dim light. a room with good natural light. White paint reflects the light. The light was beginning to fail (= it was beginning to get dark). The knife gleamed as it caught the light(= as the light shone on it).
A guide to waves, particles, colour and more - BBC Science Focus Magazine.
