Definition of radius

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Radius (n.) The movable limb of a sextant or other angular instrument.

Lern More About Radius

Hanse :: Hanse (n.) That part of an elliptical or many-centered arch which has the shorter radius and immediately adjoins the impost.
Radius :: Radius (n.) The barbs of a perfect feather.
Radiale :: Radiale (n.) The bone or cartilage of the carpus which articulates with the radius and corresponds to the scaphoid bone in man.
Radius Vector :: Radius vector (n.) An ideal straight line joining the center of an attracting body with that of a body describing an orbit around it, as a line joining the sun and a planet or comet, or a planet and its satellite..
Spoke :: Spoke (n.) The radius or ray of a wheel; one of the small bars which are inserted in the hub, or nave, and which serve to support the rim or felly..
Unity :: Unity (n.) Any definite quantity, or aggregate of quantities or magnitudes taken as one, or for which 1 is made to stand in calculation; thus, in a table of natural sines, the radius of the circle is regarded as unity..
Radius :: Radius (n.) A ray, or outer floret, of the capitulum of such plants as the sunflower and the daisy. See Ray, 2..
Radiuses :: Radiuses (pl. ) of Radiu.
Radii :: Radii (n.) pl. of Radius.
Epipodiale :: Epipodiale (n.) One of the bones of either the forearm or shank, the epipodialia being the radius, ulna, tibia, and fibula..
Hyporadius :: Hyporadius (n.) One of the barbs of the hypoptilum, or aftershaft of a feather. See Feather..
Throw :: Throw (n.) The extreme movement given to a sliding or vibrating reciprocating piece by a cam, crank, eccentric, or the like; travel; stroke; as, the throw of a slide valve. Also, frequently, the length of the radius of a crank, or the eccentricity of an eccentric; as, the throw of the crank of a steam engine is equal to half the stroke of the piston..
Vector :: Vector (n.) Same as Radius vector.
Radius Vector :: Radius vector () A straight line (or the length of such line) connecting any point, as of a curve, with a fixed point, or pole, round which the straight line turns, and to which it serves to refer the successive points of a curve, in a system of polar coordinates. See Coordinate, n..
Ray :: Ray (n.) A radiating part of a flower or plant; the marginal florets of a compound flower, as an aster or a sunflower; one of the pedicels of an umbel or other circular flower cluster; radius. See Radius..
Radian :: Radian (n.) An arc of a circle which is equal to the radius, or the angle measured by such an arc..
Hypotrochoid :: Hypotrochoid (n.) A curve, traced by a point in the radius, or radius produced, of a circle which rolls upon the concave side of a fixed circle. See Hypocycloid, Epicycloid, and Trochoid..
Radius :: Radius (n.) The preaxial bone of the forearm, or brachium, corresponding to the tibia of the hind limb. See Illust. of Artiodactyla..
Radius :: Radius (n.) A right line drawn or extending from the center of a circle to the periphery; the semidiameter of a circle or sphere.
Radial :: Radial (a.) Of or pertaining to a radius or ray; consisting of, or like, radii or rays; radiated; as, (Bot.) radial projections; (Zool.) radial vessels or canals; (Anat.) the radial artery..
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