quadrant
音標['kwɒdrәnt]中文翻譯：
n. 四分之一圓, 象限, 象限儀
【醫】 四分體, 象限
英文解釋：
名詞 quadrant:
- a quarter of the circumference of a circle同義詞：right angle
- a quarter of the circumference of a circle同義詞：quarter-circle
- any of the four areas into which a plane is divided by two orthogonal coordinate axes
- the area enclosed by two perpendicular radii of a circle
- a measuring instrument for measuring altitude of heavenly bodies