What does quantum mean?

Definitions for quantum
ˈkwɒn təmquan·tum

Here are all the possible meanings and translations of the word quantum.

Princeton's WordNet

  1. quantumnoun

    a discrete amount of something that is analogous to the quantities in quantum theory

  2. quantumnoun

    (physics) the smallest discrete quantity of some physical property that a system can possess (according to quantum theory)


  1. quantumnoun

    The total amount of something; quantity.

  2. quantumnoun

    The amount or quantity observably present, or available.

  3. quantumnoun

    The smallest possible, and therefore indivisible, unit of a given quantity or quantifiable phenomenon.

  4. quantumadjective

    Of a change, sudden or discrete, without intermediate stages.

  5. quantumadjective

    Of a change, significant.

  6. quantumadjective

    Involving quanta

  7. quantumadjective

    Relating to a quantum computer

  8. Etymology: From quantum, noun use of neuter form of quantus.

Samuel Johnson's Dictionary

  1. QUANTUMnoun

    The quantity; the amount.

    Etymology: Latin.

    The quantum of presbyterian merit, during the reign of that ill-advised prince, will easily be computed. Jonathan Swift.

Webster Dictionary

  1. Quantumnoun

    quantity; amount

  2. Quantumnoun

    a definite portion of a manifoldness, limited by a mark or by a boundary

  3. Etymology: [L., neuter of quantus how great, how much. See Quantity,]


  1. Quantum

    In physics, a quantum is the minimum amount of any physical entity involved in an interaction. Behind this, one finds the fundamental notion that a physical property may be "quantized," referred to as "the hypothesis of quantization". This means that the magnitude can take on only certain discrete values. There is a related term of quantum number. An example of an entity that is quantized is the energy transfer of elementary particles of matter through bosons and of photons. A photon is a single quantum of light, and is referred to as a "light quantum". The energy of an electron bound to an atom orbital is said to be quantized, which results in the stability of atoms, and of matter in general. As incorporated into the theory of quantum mechanics, this is regarded by physicists as part of the fundamental framework for understanding and describing nature at the infinitesimal level. Normally quanta are considered to be discrete packets with energy stored in them. Max Planck considered these quanta to be particles that can change their form. This phenomenon can be observed in black-body radiation during temperature fluctuation.

Chambers 20th Century Dictionary

  1. Quantum

    kwon′tum, n. quantity: amount:—pl. Quan′ta.—Quantum sufficit—as much as is sufficient. [L. quantum, neut. of quantus, how great.]

Editors Contribution

  1. Quantum

    An amount of energy or data expressed as a quantity.

    Quantum computing is progressing towards reality.

    Submitted by anonymous on May 29, 2017  

Suggested Resources

  1. quantum

    Song lyrics by quantum -- Explore a large variety of song lyrics performed by quantum on the Lyrics.com website.

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How to pronounce quantum?

How to say quantum in sign language?


  1. Chaldean Numerology

    The numerical value of quantum in Chaldean Numerology is: 9

  2. Pythagorean Numerology

    The numerical value of quantum in Pythagorean Numerology is: 8

Examples of quantum in a Sentence

  1. Michael Firenze:

    It looks worse than it was, quantum does kinetic energy storage – the way it is installed is very, very safe.

  2. Yehuda Zaks:

    But I'm not expecting a quantum leap from one end to the other, i think we'll just be able to get back to normality. That's what I hope to get from this era.

  3. Narendra Modi:

    We are planning to take a quantum leap.

  4. Akira Furusawa:

    Usually there are two types of quantum information processing, there's the qubit type, the digital information processing, and there's continuous variable, a sort of analog type of quantum information. We are trying to combine them.

  5. Paul Stimers:

    They have a quantum satellite no one else has done, a communications network no one else has done, and workforce development program to bring new Chinese quantum engineers online, you start to say, that's worrisome.

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    a symptom of reduced quality or strength
    • A. bash
    • B. tranquillity
    • C. deterioration
    • D. assault

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