Cherenkov radiation/chiʹr(y)engkof/ noun

• planetary
• planetary nebula
• planetesimal
• planetoid
• planform
• plangent
• planimeter
• planish
• planisphere
• plank
• planking
• plankton
• planned economy
• planned obsolescence
• planner
• planning permission
• plano-
• planoconcave
• planoconvex
• plan of action/attack
• plant
• Plantagenet
• plantain
• plantain lily
• plantar