from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Reciprocal action and reaction; interaction.
  • intransitive verb To act or react on each other; interact.

from The Century Dictionary.

  • noun Reciprocal action or influence; interchange of action and reaction, as between the parts of a machine; concurrent operation or procedure; interaction.

from the GNU version of the Collaborative International Dictionary of English.

  • noun Mutual action or influence; interaction.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun interaction
  • verb to interact

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun reciprocal action and reaction


Sorry, no etymologies found.


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