radius
美音:[´reıdıəs
]
英音:[´reıdıəs
]
n.半径,范围,辐射光线,有效航程,范围,界限
单词图片
难易程度:
radius为短语/超纲词汇
词形变化:
名词复数:radii
词根
radi＝ray（光线）
近义词, 同义词
radius
/'reɪdɪəs; `redɪəs/
n (pl -dii / -dIaI; -dI9aI/)
1 (length of a) straight line from the centre of a circle or sphere to any point on its circumference or surface 半径（距离）. =>App
5 见附录 5. =>illus at circle 见circle插图.
2 circular area measured by its radius 用半径度量的圆形面积; 半径范围
*Police searched all the woods within a six-mile radius/within a radius of six miles. 警方搜索了在周围六英里以内的树林各处.
3 (anatomy 解) outer shorter bone in the human forearm; corresponding bone in an animal's foreleg or a bird's wing （人与兽的）桡骨; 鸟翼中相当于桡骨的骨. =>illus at skeleton 见skeleton插图. Cf 参看 ulna.
n (pl -dii / -dIaI; -dI9aI/)
1 (length of a) straight line from the centre of a circle or sphere to any point on its circumference or surface 半径（距离）. =>App
5 见附录 5. =>illus at circle 见circle插图.
2 circular area measured by its radius 用半径度量的圆形面积; 半径范围
*Police searched all the woods within a six-mile radius/within a radius of six miles. 警方搜索了在周围六英里以内的树林各处.
3 (anatomy 解) outer shorter bone in the human forearm; corresponding bone in an animal's foreleg or a bird's wing （人与兽的）桡骨; 鸟翼中相当于桡骨的骨. =>illus at skeleton 见skeleton插图. Cf 参看 ulna.
radius
npluralradii [-diaɪ/
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