tricentenary /trī-sen-tēˈnə-ri or -tenˈə-ri/

• pyrite
• pyrites
• pyrithiamine
• pyrithiamines
• pyritic
• pyritical
• pyritiferous
• pyritise
• pyritised
• pyritises
• pyritising
• pyritize
• pyritized
• pyritizes
• pyritizing
• pyritohedra
• pyritohedral
• pyritohedron
• pyritous
• pyro
• pyro-
• pyro-acetic
• pyroballogies
• pyroballogy
• pyrochemical