radius.
The long bone in the forearm, on the side of the thumb.
Meaning & usage
The long bone in the forearm, on the side of the thumb.
The lighter bone (or fused portion of bone) in the forelimb of an animal.
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.
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.
The 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.
The minimum eccentricity of any vertex, for a given graph.
Where this word comes from
Borrowed from Latin radius (“ray”). Doublet of ray.
To give a rounded edge to.
Where this word comes from
Borrowed from Latin radius (“ray”). Doublet of ray.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.