tridominium /trī-dō-minˈi-əm/

Threefold rule

• aquaboard
• aquaboards
• aquacade
• aquacades
• amphipathic
• amphiphilic
• amphipod
• Amphipoda
• amphipodous
• amphipods
• amphiprostyle
• amphiprotic
• amphisbaena
• amphisbaenae
• amphisbaenas
• amphisbaenic
• amphiscian
• amphiscians
• amphistomous
• amphitheatral
• amphitheatre
• amphitheatres
• amphitheatric
• amphitheatrical
• amphitheatrically