下げ疳かんげかんMeanings1noun, noun which may take the genitive case particle 'no'chancreMedical term for a painless ulcer, typically associated with primary syphilis. Used in clinical contexts.梅ばい毒どくの初しょ期き症しょう状じょうとして下げ疳かんが現あらわれることがある。A chancre may appear as an early symptom of syphilis.