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  1. QUANTUM Definition & Meaning - Merriam-Webster

    The meaning of QUANTUM is quantity, amount. How to use quantum in a sentence.

  2. Quantum - Wikipedia

    In physics, a quantum (pl.: quanta) is the minimum amount of any physical entity (physical property) involved in an interaction. The fundamental notion that a property can be "quantized" …

  3. Quantum | Definition & Facts | Britannica

    Oct 8, 2025 · Quantum, in physics, discrete natural unit, or packet, of energy, charge, angular momentum, or other physical property. Light, for example, appearing in some respects as a …

  4. What Does ‘Quantum’ Actually Mean and Why is it Everywhere?

    Apr 11, 2024 · Quantum, often called quantum mechanics, deals with the granular and fuzzy nature of the universe and the physical behavior of its smallest particles. The idea of physical …

  5. QUANTUM Definition & Meaning | Dictionary.com

    A discrete, indivisible manifestation of a physical property, such as a force or angular momentum. Some quanta take the form of elementary particles; for example, the quantum of …

  6. QUANTUM | English meaning - Cambridge Dictionary

    QUANTUM definition: 1. the smallest amount or unit of something, especially energy: 2. the smallest amount or unit of…. Learn more.

  7. Quantum - definition of quantum by The Free Dictionary

    Define quantum. quantum synonyms, quantum pronunciation, quantum translation, English dictionary definition of quantum. n. pl. quan·ta 1. Physics a. The smallest amount of a physical …

  8. QUANTUM definition and meaning | Collins English Dictionary

    In physics, quantum theory and quantum mechanics are concerned with the behaviour of atomic particles. Both quantum mechanics and chaos theory suggest a world constantly in flux.

  9. What is quantum in physics and computing? - TechTarget

    Feb 27, 2025 · Quantum technology uses the nature of subatomic particles to perform calculations instead of electrical signals like classical computing. Quantum computers use …

  10. Understanding “Quantum” – Meaning, Definition, And …

    Sep 10, 2025 · At its core, quantum refers to the smallest amount or unit of something that can exist independently. It’s also widely used in modern science, particularly physics, to describe …