from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A peripheral or secondary effect, especially an undesirable secondary effect of a drug or therapy.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An unintended consequence of any action in addition to the intended consequence of that action.
  • n. An adverse effect, an unintended consequence of a drug or therapy; usually not a beneficial effect.
  • n. A change in state caused by a function call (typically "side-effect").

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

  • n. any adverse and unwanted secondary effect
  • n. a secondary and usually adverse effect of a drug or therapy


Sorry, no etymologies found.


  • Discomfort during sex could be a side effect for some.

    Strategic Engagement

  • It made her into a rather portly Senite, but not all the Senites were slim, especially the older ones, likely a side effect of the loss of testosterone.


  •     "The stomachache is a side effect of snapping the transportation spell," Morwen said.

    calling on dragons

  • If indifference to personal safety was in fact a side effect of Seraph's proximity to Angelmass ...


  • My energy level was up, and I wasn�t even hungry, an apparent side effect of the Acai Berry which curbs the appetite.

    Automotive Headlines

  • A side effect of the sheep-like attitude the angels created?


  • At present Saguio could do nothing, was completely unaware of the ability that might have unintentionally been bestowed on him as a side effect of the operation.

    The False Mirror

  • Spirituality is often presumed to be an epiphenomenon or side effect of the brain and our need for hope, even if the hope is delusional.

    The Sacred Promise

  • Joy is an uncapturable yet utterly predictable side effect of genuine community.



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