quadrant
noun [ C ] uk/ˈkwɒd.rənt/ us/ˈkwɑː.drənt/
(QUARTER)
mathematics specialized四分之一圆周
a quarter of a circle
四分之一区域
a quarter of an area
The river runs through the southwest quadrant of the city. 那河流流经城市的西南部。
(DEVICE)
sailing specialized（天文）象限仪
a device for measuring the height of stars in the sky that was used in the past for calculating directions when travelling across the sea