#1
radius n. [
r] the length of a line segment between the center and circumference of a circle or sphere
. wn #2
radius n. a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
. wn #3
radius n. a circular region whose area is indicated by the length of its radius; "they located it within a radius of 2 miles"
. wn #4
radius n. the outer and slightly shorter of the two bones of the human forearm
. wn #5
radius n. [
spoke, wheel spoke] support consisting of a radial member of a wheel joining the hub to the rim
. wn