radius به انگلیسی

 

From Longman Dictionary

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

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