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Definition of "interaction" []

  • The act or process of interacting. (noun)
  • The state of undergoing interaction. (noun)
  • Physics Any of four fundamental ways in which elementary particles and bodies can influence each other, classified as strong, weak, electromagnetic, and gravitational. (noun)
  • A mutual or reciprocal action or influence (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.

  • The transfer of energy between elementary particles, between a particle and a field, or between fields (noun)

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Use "interaction" in a sentence
  • "And I don't think the interaction is any less personal than a letter."
  • "For some this interaction is the most sustained human contact of their entire lives."
  • "This interaction is also key to our discussion of the interactivity between reader and the illuminated poems."