materia medica /mə-tēˈri-ə medˈi-kə/

1. Substances used in medicine
2. The science of their properties and use

• psychopathist
• psychopathists
• psychopathologist
• psychopathologists
• psychopathology
• psychopaths
• psychopathy
• psychopharmacologist
• psychopharmacologists
• psychopharmacology
• psychophilies
• psychophily
• psychophysical
• psychophysical parallelism
• psychophysicist
• psychophysicists
• psychophysics
• psychophysiology
• psychopomp
• psychopomps
• psychoprophylaxis
• psychos
• psychoses
• psychosexual
• psychosis