/ˈkwɒdrənt ||; ˈkwɑdrənt/noun[C] 1 a quarter of a circle or of its CIRCUMFERENCE(= the distance around it) 四分之一圆或圆周 ☞picture at circle 见circle插图
2 an instrument for measuring angles, especially to check your position at sea or to look at stars 象限仪(用于测量角度,尤指为了确定海上位置或观望星空)