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quanta's
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2 dictionary results for: quanta's
American Heritage Dictionary - Cite This Source - Share This
quan·tum     (kwŏn'təm)  Pronunciation Key 
n.   pl. quan·ta (-tə)
  1. A quantity or amount.
  2. A specified portion.
  3. Something that can be counted or measured.
  4. Physics
    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.
adj.   Relating to or based upon quantum mechanics.

[Latin, from neuter of quantus, how great; see quantity.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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The American Heritage Science Dictionary - Cite This Source - Share This
quantum   (kwŏn'təm)  Pronunciation Key 
Plural quanta
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.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
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