Learner's definition of RADIUS
[count]
1
technical : a straight line from the center of a circle or sphere to any point on the outer edge半径 2
: an area that goes outward in all directions from a particular place半径范围;周围 -
The new museum is expected to draw people from a wide radius.新博物馆有望吸引周边大范围的民众。
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More than 100,000 students live within a 10-mile radius of the university. [=within 10 miles of the university]超过10万名学生居住在大学周边10英里范围内。
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There are three restaurants within a one-block radius of our apartment.我们公寓周边一个街区的范围内有三家餐馆。
3
medical : the bone in the lower part of your arm on the same side as your thumb桡骨 — see picture at human