- side effect - a secondary and usually adverse effect of a drug or therapy; "severe headaches are one of the side effects of the drug"
--1 is a kind of effect
--1 has particulars: hairy tongue, furry tongue, black tongue- side effect, fallout - any adverse and unwanted secondary effect; "a strategy to contain the fallout from the accounting scandal"
--2 is a kind of consequence, effect, outcome, result, event, issue, upshot
- side effect, fallout - any adverse and unwanted secondary effect; "a strategy to contain the fallout from the accounting scandal"