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Medical Definition of Cantharidal collodion
1. A powdered chloroform extract of cantharides in flexible collodion; a vesicant. Synonym: blistering collodion, collodion vesicans. (05 Mar 2000)
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1. A powdered chloroform extract of cantharides in flexible collodion; a vesicant. Synonym: blistering collodion, collodion vesicans. (05 Mar 2000)