materia medica /mə-tēˈri-ə medˈi-kə/

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

• OM
• Om
• -oma
• omadhaun
• omadhauns
• Omani
• -omas
• omasa
• omasal
• omasum
• -omata
• Piperaceae
• piperaceous
• pipe rack
• pipe racks
• piperazine
• piperazines
• piperic
• piperidine
• piperidines
• piperine
• piperines
• Pipe Roll
• piperonal
• piperonals