triapsidal /trī-apˈsi-d(ə)l/

With three apses (also triapsˈal)

• plenteousness
• plenteousnesses
• plenties
• plentiful
• plentifully
• plentifulness
• plentifulnesses
• plentitude
• plenty
• plenum
• plenum chamber
• plenums
• plenum system
• plenum ventilation
• pleo-
• pleochroic
• pleochroism
• pleochroisms
• pleomorphic
• pleomorphies
• pleomorphism
• pleomorphisms
• pleomorphous
• pleomorphy
• pleon