triduum /tridˈū-əm or trīˈdū-/ (esp RC)

1. A space of three days
2. A period of prayer or religious celebration lasting three days

tridˈūan adjective

Lasting three days

• superfine
• superfineness
• superfinenesses
• superfit
• superfluid
• superfluidities
• superfluidity
• superfluities
• superfluity
• superfluous
• superfluously
• superfluousness
• superfluousnesses
• superflux
• superfluxes
• super flyweight
• superfoetation
• superfood
• superfrontal
• superfrontals
• superfuse
• superfused
• superfuses
• superfusing
• superfusion