quadrant /kwodˈrənt/

1. The fourth part of a circle or its circumference, a sector or an arc of 90º (also adjective)
2. An area, object or street of that form
3. An instrument with an arc of 90º for taking altitudes
4. One of the four segments or areas into which something is divided

quadrantal /-rantˈl/ adjective

• nationalists
• nationalities
• nationality
• nationalization
• nationalize
• nationalized
• nationalizes
• nationalizing
• National Lottery
• nationally
• national park
• national parks
• nationals
• quagginesses
• quaggy
• quagmire
• quagmired
• quagmires
• quagmirier
• quagmiriest
• quagmiring
• quagmiry
• quags
• quahaug
• quahaugs