1. noun /ˌsɒp.əˈɹɪf.ɪk,ˌsoʊ.pəˈɹɪf.ɪk/
Something inducing sleep, especially a drug
The doctor prescribed a soporific to help him sleep.
2. adjective /ˌsɒp.əˈɹɪf.ɪk,ˌsoʊ.pəˈɹɪf.ɪk/
The professor delivered a soporific lecture.
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