Pronunciation: /saɪd ɪˌfɛkt/
noun a secondary, typically undesirable effect of a drug or medical treatment
A1 I experienced a side effect after taking the medication.
A2 Some people may have side effects from certain vaccines.
B1 The doctor explained the possible side effects of the treatment.
B2 One of the side effects of the new drug is dizziness.
C1 The side effects of chemotherapy can be severe and long-lasting.
C2 Researchers are studying the potential side effects of the new technology.
formal One common side effect of the medication is drowsiness.
informal The medication might make you feel sleepy as a side effect.
slang Taking that drug could have a weird side effect of making you super tired.
figurative The new policy had the unintended side effect of alienating long-time customers.
side effects
more side effects
most side effects
affecting side effects
will have side effects
have had side effects
are experiencing side effects
side effect
very significant side effects
to cause side effects
experiencing side effects
causing side effects