decahedron/dekəʹheedrən/ noun (pl decahedra decahedrons)

• primary care trust
• primary cell
• primary colour
• primary consumer
• primary school
• primary syphilis
• primate
• Primate of All England
• Primate of England
• primatology
• prime
• prime cost
• prime interest rate
• prime meridian
• prime minister
• prime mover
• prime number
• primer
• prime rate
• prime time
• primeval
• primigravida
• priming
• primipara
• primitive