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

• apolipoprotein
• apolipoproteins
• apolitical
• apoliticalities
• apoliticality
• apolitically
• apoliticism
• apoliticisms
• Apollinarian
• Apollinarianism
• Apollinaris
• Apollinaris water
• Apolline
• Apollo
• Apollonian
• apollonicon
• apollonicons
• apollos
• Apollos
• Apollyon
• apologetic
• apologetical
• apologetically
• apologetics
• apologia