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Definition of "quantum" []

  • A quantity or amount. (noun)
  • A specified portion. (noun)
  • Something that can be counted or measured. (noun)
  • Physics The smallest amount of a physical quantity that can exist independently, especially a discrete quantity of electromagnetic radiation. (noun)
  • Physics This amount of energy regarded as a unit. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "quantum" in a sentence
  • "~ Hidden order found in a quantum spin liquid -- An international team, including scientists from the London Centre for Nanotechnology, has detected a hidden magnetic “quantum order” that extends over chains of 100 atoms in a ceramic without classical magnetism."
  • "The word quantum is thrown around a lot these days in media like in the film What the Bleep Do We Know?"
  • "In 1902, two years after the physicist Max Planck first coined the term quantum to describe the core reality of light, a young British writer named James Allen penned a little book entitled As a Man Thinketh, which drew its title and its message from the biblical verse “As a man thinketh in his heart, so is he.”"
Words like "quantum"
quantum chaos
quantum chemistry quantum chromodynamics
quantum circuit
quantum computing
quantum decoherence
quantum degeneracy
quantum electrochemistry
quantum electrodynamics quantum field theory
quantum fingerprinting
quantum suff