[rey-dee-uh l] /ˈreɪ di əl/
arranged like radii or rays.
having spokes, bars, lines, etc., arranged like radii, as a machine.
made in the direction of a radius; going from the center outward or from the circumference inward along a radius:
a radial cut.
Zoology. pertaining to structures that radiate from a central point, as the arms of a starfish.
of, like, or pertaining to a radius or a ray.
Anatomy, Entomology. of, relating to, or situated near the radius.
acting along or in the direction of the radius of a circle:
radial motion; radial velocity.
a radial section or construction.
(of lines, bars, beams of light, etc) emanating from a common central point; arranged like the radii of a circle
of, like, or relating to a radius or ray
spreading out or developing uniformly on all sides
of or relating to the arms of a starfish or similar radiating structures
(anatomy) of or relating to the radius or forearm
(astronomy) (of velocity) in a direction along the line of sight of a celestial object and measured by means of the red shift (or blue shift) of the spectral lines of the object Compare tangential (sense 2)
a radial part or section
short for radial tyre, radial drilling machine
c.1400, “of or like a ray or radius,” from Medieval Latin radialis, from Latin radius “shaft, rod; spoke of a wheel; beam of light” (see radius). As a noun, a type of tire, attested from 1965, short for radial-ply (tire). Related: Radially.
radial ra·di·al (rā’dē-əl)
noun, Ophthalmology. 1. a surgical technique for correcting nearsightedness by making a series of spokelike incisions in the cornea to change its shape and focusing properties. /ˌkɛrəˈtɒtəmɪ/ noun 1. an operation designed to improve short-sightedness in which a number of cuts are made around the cornea to change the shape of it radial keratotomy n. […]
noun, Astronomy. 1. the component of the motion of a star away from or toward the earth along its line of sight, expressed in miles or kilometers per second and determined by the shift in the wavelength of light emitted by the star.
- Radial nerve
radial nerve n. A nerve that arises from the posterior cord of the brachial plexus and divides into two terminal branches, designated superficial and deep, that supply muscular and cutaneous branches to the dorsal aspect of the arm and forearm.
- Radial paralysis
noun 1. (vet science) paralysis of a forelimb as a result of loss of function of the radial nerve, usually following traumatic injury