Share this entry
side effect Syllabification: side ef·fect
Pronunciation: /ˈsīd əˌfekt/

Definition of side effect in English:


A secondary, typically undesirable effect of a drug or medical treatment: many anticancer drugs now in use have toxic side effects
More example sentences
  • Most of those who had had a stroke were aware of their own drug treatment and were concerned about the side effect of drugs.
  • Tell your doctor if you have had a particular side effect from a pain medication in the past.
  • If priapism has occurred as a side effect of medication then a different medication can usually be prescribed.
Definition of side effect in:
Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Subscribe to remove adverts and access premium resources