Longman Dictionary of Contemporary English homepage

analgesic

 noun
     
an‧al‧ge‧sic [countable]
technical a drug that reduces pain [= painkiller]:
Aspirin is a popular analgesic.
—analgesic adjective [only before noun]
drugs that have an analgesic effect on ulcers
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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