
Definition of Radius
1. Noun. The length of a line segment between the center and circumference of a circle or sphere.
Group relationships: Diam, Diameter
Specialized synonyms: Semidiameter, Radius Of Curvature
Generic synonyms: Length
2. Noun. A straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere).
3. Noun. A circular region whose area is indicated by the length of its radius. "They located it within a radius of 2 miles"
4. Noun. The outer and slightly shorter of the two bones of the human forearm.
5. Noun. Support consisting of a radial member of a wheel joining the hub to the rim.
Group relationships: Bicycle Wheel, Cartwheel, Wagon Wheel
Generic synonyms: Support
Definition of Radius
1. n. A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.
Definition of Radius
1. Noun. (anatomy) The long bone in the forearm, on the side of the thumb. ¹
2. Noun. (zoology) The lighter bone (or fused portion of bone) in the forelimb of an animal. ¹
3. Noun. (geometry) A line segment between any point on the circumference of a circle and its center/centre. ¹
4. Noun. (geometry) The length of this line segment. ¹
¹ Source: wiktionary.com
Definition of Radius
1. a straight line from the center of a circle to the circumference [n DII or DIUSES]
Medical Definition of Radius
1. One of two bones which constitute the forearm. The largest portion of the radius is at the wrist joint where it articulates with the carpal bones of the hand. Above, the radius articulates with the humerus at the elbow joint. Bony injury (fracture) to the radius occurs most commonly at the wrist. (27 Sep 1997)
Lexicographical Neighbors of Radius
Literary usage of Radius
Below you will find example usage of this term as found in modern and/or classical literature:
1. Anatomy, Descriptive and Surgical by Henry Gray (1901)
"In fractures of the radius below the insertion of the Pronator radii teres Fio.
250.—Fracture of the shaft of the radius. forearm should be bent, ..."
2. Studies in History, Economics, and Public Law by Lawrence Henry Chamberlain (1912)
"In this period local prohibition was granted to nine (9) areas of one mile radius,
twenty (20) areas of two miles radius, eighteen (18) areas of three miles ..."
3. Surgery, Gynecology & Obstetrics by American College of Surgeons, Franklin H. Martin Memorial Foundation (1914)
"Fractured radius. Note that the styloid of the radius is proximal to the cross
... The long axis of the radius now passes down between the third and fourth ..."
4. The American Journal of the Medical Sciences by Southern Society for Clinical Investigation (U.S.) (1901)
"Class I. Fracture through the base of the styloid process of the radius. ...
Fracture of the inner angle of the lower end of the radius. ..."
5. A Treatise on Conic Sections: Containing an Account of Some of the Most by George Salmon (1879)
"When these conditions are fulfilled we find by comparison of coefficients that
the coordinates of the centre and the radius are given ..."
6. A Treatise on the Analytic Geometry of Three Dimensions by George Salmon (1882)
"Thus, to find the radius of curvature of the section by the plane arz, we have
only to make y = 0 in the equation, and •we get a curve whose radius of ..."
7. A Treatise on the Analytic Geometry of Three Dimensions by George Salmon (1882)
"Thus, to find the radius of curvature of the section by the plane zz, we have
only to make y = 0 in the equation, and we get a curve whose radius of ..."