dissection Play nounThe action of dissecting a body or plant to study its internal parts. SYNONYMS analysisanatomyassessmentautopsybreakdowncriticismcutting opencutting updeconstructiondismembermentevaluationexaminationexplorationinquiryinspectioninvestigationnecropsypost-mortemprobeprobingscrutinizationscrutinystudyvivisectionzootomy