2 definitions found From WordNet (r) 2.0 [wn]: aftereffect noun 1: any result that follows its cause after an interval 2: a delayed effect of a drug or therapy; "the drug had unexpected aftereffects" From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]: 26 Moby Thesaurus words for "aftereffect": afterbirth, afterclap, aftercrop, afterglow, aftergrowth, afterimage, aftermath, afterpain, aftertaste, by-product, consequence, event, eventuality, issue, outcome, placenta, remainder, residual, residuum, result, secundines, side effect, track, trail, upshot, wake

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