painkilling

 Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++pain·kill·ing /ˈpeɪnˌkɪlɪŋ/ adjective [only before noun]  able to reduce or remove pain 减轻疼痛的；止痛的 painkilling drugs 止痛药

Examples from the Corpus

painkilling• I couldn't be certain how much painkilling medication she had taken, but it was almost certainly not enough.• Half the active substances used for rheumatic conditions also appear in the 100 or so painkilling preparations available.• The judge also ruled that medical staff could administer a painkilling sedative to assist him in the process.

pain·kill·ing adjectiveChineseSyllable  

to remove reduce pain able Corpus or

painkilling
pain‧kill‧ing /ˈpeɪnˌkɪlɪŋ/ adjective [only before noun]
able to reduce or remove pain:
    painkilling drugs