1681 tr. Willis' Rem.Med. Wks. Vocab. ,Opiologie, the doctrine of opium. 
1882 Sat. Rev. 29 July 160/2Dr. Hubbard's treatise on what he calls Opiumania and Dipsomania. 
1889 Leisure Hour 371 Young, rich, with a good position in the county..in love with her, and—an opiomaniac. 
1878 tr. von Ziemssen'sCycl. Med. XVII. 875Chronic opium-poisoning, opiophagy,..belong to the category of diseases which are almost incurable. 
opio-
combining form 
Etymology: Greek opion opium — more at opium 
 : opium 
< opiomania >
< opiophagous >
< opiomania >
< opiophagous >