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To shorten the radius of (a curve); to make (a curve) sharper; as, to quicken the sheer, that is, to make its curve more pronounced.

Of or pertaining to a radius or ray; consisting of, or like, radii or rays; radiated; as, (Bot.) radial projections; (Zoöl.) radial vessels or canals; (Anat.) the radial artery. Radial symmetry. (Biol.) See under Symmetry.

The bone or cartilage of the carpus which articulates with the radius and corresponds to the scaphoid bone in man.

An arc of a circle which is equal to the radius, or the angle measured by such an arc.

pl. of Radius.

A combining form indicating connection with, or relation to, a radius or ray; specifically (Anat.), with the radius of the forearm; as, radio-ulnar, radiomuscular, radiocarpal.

A radiotelegraphic station serving solely for determining the position of ships. The radius of operation of such stations was restricted by the International Radiotelegraphic Convention (1912) to 30 nautical miles.

n aster or a sunflower; one of the pedicels of an umbel or other circular flower cluster; radius. See Radius.

on which are given the lengths of the chords of arcs from 0º to 90º in a circle of given radius, -- used in measuring given angles and in plotting angles of given numbers of degrees.

The scaphoid bone. Scaphoid bone (a) One of the carpal bones, which articulates with the radius; the radiale. (b) One of the tarsal bones; the navicular bone. See under Navicular.

angent drawn from the other end; the number expressing the ratio line of this line to the radius of the circle. See Trigonometrical function, under Function.

enter of a circle, a sphere, or other curved figure, to its circumference or periphery; a radius.

le shell (Zoöl.), any one of numerous species of marine gastropods of the genus Volva, or Radius, having a smooth, spindle- shaped shell prolonged into a channel at each end.

es. See Sinusoid. -- Natural sines, the decimals expressing the values of the sines, the radius being unity. -- Sine of an angle, in a circle whose radius is unity, the sine of the arc that measures the angle; in a right-angled triangle, the side opposite the given angle divided by the hypotenuse. See Trigonometrical…

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.

his film, amounting to less than a thousandth of a millimeter, is considered to equal the radius of the sphere of molecular action, that is, the greatest distance at which there is cohesion between two particles. Particles lying below this film, being equally acted on from all sides, are in equilibrium as to forces of…

tangency and a given line, the given line being, for example, the axis of abscissas, or a radius of a circle produced. See Trigonometrical function, under Function. Artificial, or Logarithmic, tangent, the logarithm of the natural tangent of an arc. -- Natural tangent, a decimal expressing the length of the tangent of…

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.

xial bone of the forearm, or branchium, corresponding to the fibula of the hind limb. See Radius.

e, 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.