quadrant
🇺🇸
/ˈkwɑːdrənt/
🇬🇧
/ˈkwɒdrənt/
One fourth of a circle or the distance around it.
The point is located in the top left quadrant of the circle.
位於圓的左上象限
An instrument used to measure angles, especially for navigation or astronomy.
The sailor used a quadrant to determine his position at sea.
水手使用象限儀來確定他在海上的位置