analgesic
US /ˌæn.əlˈdʒiː.zɪk/
UK /ˌæn.əlˈdʒiː.zɪk/

1.
a drug that relieves pain
:
•
The doctor prescribed a strong analgesic for her back pain.
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She took an analgesic to ease her headache.
1.
relating to or denoting a drug that relieves pain
:
•
The plant has strong analgesic properties.
•
This cream provides an analgesic effect on sore muscles.