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The main source of natural light on Earth is the Sun. Historically, another important source of light for humans has been fire, from ancient campfires to modern kerosene lamps. With the development of. The meaning of LIGHT is something that makes vision possible. How to use light in a sentence. Synonym Discussion of Light. Nov 25, 2025 · Light is electromagnetic radiation that can be detected by the human eye. Electromagnetic radiation occurs over an extremely wide range of wavelengths, from gamma rays.

Define light. light synonyms, light pronunciation, light translation, English dictionary definition of light. n. 1. Physics a. Electromagnetic radiation that is visible, perceivable by the normal human eye as colors. Nov 24, 2025 · What is light, what are the different types of light and how does light behave? A history of discoveries has led us to see more clearly. In most situations, light behaves like a wave with properties like wavelength and frequency, and is subject to diffraction and interference. In some situations, light can be considered to behave like a.