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View synonyms for

aftereffect

[ af-ter-i-fekt, ahf- ]

noun

  1. a delayed effect; an effect that follows at some interval after the stimulus that produces it.
  2. Medicine/Medical. a result appearing after the first effect due to an agent, usually a drug, has gone.

aftereffect

/ ˈɑːڳəɪˌɛ /

noun

  1. any result occurring some time after its cause
  2. med any delayed response to a stimulus or agent Compare side effect
  3. psychol any illusory sensation caused by a stimulus that has ceased
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of aftereffect1

First recorded in 1810–20; after + effect

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