Radius
a piece of metal or wood with a thick back tapering to a point; a geometric figure of two inclined planes set back to back
something that can be moved
at a slant or slope
a small wheel having a groove in which a rope or cable can move
half the distance of the diameter; the distance from the center of a circle to the outside of the circle
a measurement used in geometry to describe the size of a circle or sphere, typically represented by the letter "r"
in the context of networking, the distance from the center of a wireless network to the edge of its coverage area