meperidine/məʹperədeen/ noun

• protection
• protectionism
• protective
• protective custody
• protector
• protectorate
• protectress
• protein
• pro tem
• proteolysis
• Proterozoic
• protest
• Protestant
• Protestant ethic
• Protestant work ethic
• protestation
• prothalamion
• prothallium
• prothallus
• prothesis
• prothonotary
• prothrombin
• protist
• protium
• proto-