radius به انگلیسی
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From Longman Dictionary
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ra‧di‧us /ˈreɪdiəs/ ●○○ noun (plural radii /-diaɪ/) [countable]
the distance from the centre to the edge of a circle, or a line drawn from the centre to the edge
an area that covers a particular distance in all directions from a central point
the outer bone of the lower part of your arm
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Example
The moon has a radius of approximately 1737 kilometers
The ionic radius varies among the elements depending on atomic number and ionic charge of the ion
There were still a few funeral directors within a thirty-mile radius I had not, as yet, contacted
This is about a factor of 3 smaller than current best estimates of the neutron star radius
The shock of the explosion was felt over a radius of forty miles