Dictionary › R › radius
radius
3 syllables · also radiiYour browser doesn’t have built-in voices. Try Chrome, Edge or Safari.
As a noun, radius means the long bone in the forearm, on the side of the thumb.
Meanings of radius
9 meaningsnoun
anatomyThe long bone in the forearm, on the side of the thumb.
zoologyThe lighter bone (or fused portion of bone) in the forelimb of an animal.
entomologyOne of the major veins of the insect wing, between the subcosta and the media; the vein running along the costal edge of the discal cell.
geometryA line segment between any point of a circle or sphere and its center.
“Fatima claims to have visited all the bars within a five-mile radius of her Manhattan apartment.”
geometryThe length of this line segment.
Anything resembling a radius, such as the spoke of a wheel, the movable arm of a sextant, or one of the radiating lines of a spider's web.
A circular region whose area is indicated by the length of its radiuslocation
“they located it within a radius of 2 miles”
The outer and slightly shorter of the two bones of the human forearmbody
Support consisting of a radial member of a wheel joining the hub to the rim
Similar: spoke, wheel spoke
Meanings from Wiktionary (CC BY-SA 4.0) and Open English WordNet (CC BY 4.0).