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Radius

//ˈɹeɪ.di.əs// noun, verb

Noun

1
The long bone in the forearm, on the side of the thumb.
"It is also obvious, and proved by experiment, that the rotatory motions observed in the hand proceed from the rotatory motions of the radius."
2
Initialism of Remote Authentication Dial-In User Service. abbreviation, alt-of, initialism, uncountable
3
support consisting of a radial member of a wheel joining the hub to the rim wordnet
4
The lighter bone (or fused portion of bone) in the forelimb of an animal.
5
the length of a line segment between the center and circumference of a circle or sphere wordnet

Show 8 more definitions

6
One 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.
7
the outer and slightly shorter of the two bones of the human forearm wordnet
8
A 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."
9
a circular region whose area is indicated by the length of its radius wordnet
10
The length of this line segment.
"This contribution reduces with increasing distance p from the emitting surface element dA, due to conservation of energy, as the wave energy distributed across the spherical wave front remains constant, while the radius increases during ..."
11
a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere) wordnet
12
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.
"[…] I can do more with a Quadrant, Sextant or Octant, of 1 foot Radius, furniſhed with Teleſcopical Sights and Screws, then ^([sic]) can poſſibly be done with any other Inſtrument, furniſhed only with Common Sights, though 10, 20, 30, nay threeſcore foot Radius; […]"
13
The minimum eccentricity of any vertex, for a given graph.

Verb

1
To give a rounded edge to. transitive
"A comfortable grip is ensured by smoothing the surface of the handle and radiusing the edge."

Etymology 1

Borrowed from Latin radius (“ray”). Doublet of ray.

Etymology 2

Borrowed from Latin radius (“ray”). Doublet of ray.

Unscramble this word: radius