quanta [kwon-tuh] Examples See more synonyms for quanta on Thesaurus.com noun

  1. plural of quantum.

quantum [kwon-tuh m] noun, plural quan·ta [kwon-tuh] /ˈkwɒn tə/.

  1. quantity or amount: the least quantum of evidence.
  2. a particular amount.
  3. a share or portion.
  4. a large quantity; bulk.
  5. Physics.
    1. the smallest quantity of radiant energy, equal to Planck’s constant times the frequency of the associated radiation.
    2. the fundamental unit of a quantized physical magnitude, as angular momentum.


  1. sudden and significant: a quantum increase in productivity.

Origin of quantum 1610–20; noun use of neuter of Latin quantus how much Related Words for quanta sum, amount, portion, measure, total, unit Examples from the Web for quanta Historical Examples of quanta

  • These are the axioms which properly relate only to quantities (quanta) as such.

    The Critique of Pure Reason

    Immanuel Kant

  • From this point of view the quanta appear as atoms of energy.

    A Librarian’s Open Shelf

    Arthur E. Bostwick

  • As Poincaré now points out, the trouble is that the quanta are not constant.

    A Librarian’s Open Shelf

    Arthur E. Bostwick

  • Hunc igitur laborem nostrum ut tam Gratis animis accipiatis, quanta sedulitate a nobis est obitus, ex aequo omnes rogatos volo.

    Terrestrial and Celestial Globes Vol II

    Edward Luther Stevenson

  • Quanta calcina si fatta di statue e d’altri ornamenti antichi!

    Renaissance in Italy, Volume 2 (of 7)

    John Addington Symonds

  • British Dictionary definitions for quanta quanta noun

    1. the plural of quantum

    quantum noun plural -ta (-tə)

    1. physics
      1. the smallest quantity of some physical property, such as energy, that a system can possess according to the quantum theory
      2. a particle with such a unit of energy
    2. amount or quantity, esp a specific amount
    3. (often used with a negative) the least possible amount that can sufficethere is not a quantum of evidence for your accusation
    4. something that can be quantified or measured
    5. (modifier) loosely, sudden, spectacular, or vitally importanta quantum improvement

    Word Origin for quantum C17: from Latin quantus (adj) how much Word Origin and History for quanta quantum n.

    1610s, “one’s share or portion,” from Latin quantum (plural quanta) “as much as, so much as; how much? how far? how great an extent?” neuter singular of correlative pronomial adjective quantus “as much” (see quantity). Introduced in physics directly from Latin by Max Planck, 1900; reinforced by Einstein, 1905. Quantum theory is from 1912; quantum mechanics, 1922; quantum jump is first recorded 1954; quantum leap, 1963, often figurative.

    quanta in Medicine quantum [kwŏn′təm] n. pl. quan•ta (-tə)

    1. The smallest amount of a physical quantity that can exist independently, especially a discrete quantity of electromagnetic radiation.
    2. This amount of energy regarded as a unit.
    3. A quantity or an amount.

    quanta in Science quantum [kwŏn′təm] Plural quanta

    1. 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 electromagnetic radiation is the photon, while the quanta of the weak force are the W and Z particles. See also quantum state.

    quanta in Culture quanta [(kwahn-tuh)]

    sing. quantum

    In physics, discrete bundles in which radiation and other forms of energy occur. For example, in the Bohr atom, light is sent out in quanta called photons. (See quantum mechanics.)

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