26984 words

radius

4 definitions • 4 examples
1
(the length of) a straight line joining the centre of a circle to its edge or the centre of a sphere to its surface:

Examples:

The radius of this wheel is 30 cm..
This wheel has a radius of 30 cm.
2
a distance from a central point:

Examples:

The station, shopping centre and school lie within a one-mile radius of the house.
3
the thicker of the two bones in the lower arm
4
(the length of) a straight line from the center of a circle to its edge:

Examples:

The supermarket, shopping mall, and school are all within a one-mile radius of the house (= are all less than a mile away from it).

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