perigon /perˈi-gən/

An angle of 360º (also called a round angle)

• triphthong
• triphthongal
• triphthongs
• triphyllous
• Triphysite
• tripier
• tripiest
• tripinnate
• Tripitaka
• Tripitakas
• triplane
• triplanes
• triple
• Triple Alliance
• triple bill
• triple bogey
• triple bond
• triple bonds
• triple crown
• triple-crowned
• triple crowns
• tripled
• Triple Entente
• triple event
• triple events