|1.||Compare aftereffect any unwanted nontherapeutic effect caused by a drug|
|2.||any secondary effect, esp an undesirable one|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.|
side effect n.
A peripheral or secondary effect, especially an undesirable secondary effect of a drug or therapeutic regimen.