triennium/trieʹeni·əm/ noun (pl trienniums triennia /-ni·ə/)

• Caterpillar
• caterpillar
• caterwaul
• catfish
• cat flap
• catgut
• Cath.
• cath-
• Cathar
• catharsis
• cathartic
• Cathay
• cathead
• cathedral
• Catherine wheel
• catheter
• catheterize
• cathexis
• cathode
• cathode ray
• cathode-ray tube
• Catholic
• catholic
• Catholicise
• catholicity