radius (Meaning)
radius (n)
the length of a line segment between the center and circumference of a circle or sphere
a straight line from the center to the perimeter of a circle (or from the center to the surface of a sphere)
a circular region whose area is indicated by the length of its radius
the outer and slightly shorter of the two bones of the human forearm
support consisting of a radial member of a wheel joining the hub to the rim
radius (n.)
A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.
The preaxial bone of the forearm, or brachium, corresponding to the tibia of the hind limb. See Illust. of Artiodactyla.
A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2.
The barbs of a perfect feather.
Radiating organs, or color-markings, of the radiates.
The movable limb of a sextant or other angular instrument.
Synonyms & Antonyms of radius
radius Sentence Examples
- The radius of the Earth is approximately 6,371 kilometers.
- The radius of the nucleus of an atom is extremely small, typically less than 10^-15 meters.
- A circle's radius is the distance from the center to any point on the circumference.
- The radius of a sphere is the distance from the center to any point on the surface.
- The radius of curvature of a curve is the radius of the circle that best approximates the curve at a given point.
- The orbital radius of a planet is the distance from the planet to the star it orbits.
- The Schwarzschild radius is the radius of a black hole's event horizon.
- The van der Waals radius is the radius of a spherical atom or molecule, as calculated by the van der Waals equation.
- The effective radius of a bacterial cell is the radius of a sphere that has the same volume as the cell.
- The radius of a cylindrical capacitor is the distance from the center of the cylinder to one of the electrodes.
FAQs About the word radius
the length of a line segment between the center and circumference of a circle or sphere, a straight line from the center to the perimeter of a circle (or from t
diameter, periphery,perimeter, equator, waistline, compass, circuit,circumference
No antonyms found.
The radius of the Earth is approximately 6,371 kilometers.
The radius of the nucleus of an atom is extremely small, typically less than 10^-15 meters.
A circle's radius is the distance from the center to any point on the circumference.
The radius of a sphere is the distance from the center to any point on the surface.
