radial

radial

1. of or relating to the arms of a starfish or similar radiating structures

2. Anatomy of or relating to the radius or forearm

3. 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

4. Zoology

a. any of the basal fin rays of most bony fishes

b. a radial or radiating structure, such as any of the ossicles supporting the oral disc of a sea star

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radial [′rād·ē·əl]

(graphic arts)

A line or direction from the center (principal point, isocenter, nadir point, or substitute center) to any point on a photograph.

(mathematics)

For a plane curveC, the locus of end points of lines, drawn from a fixed point, that are equal and parallel to the radius of curvature ofC.

(navigation)

One of a number of radial lines of position defined by an azimuthal radio navigation facility and identified in terms of the bearing (usually magnetic) of all points on that line from the facility.

(science and technology)

Directed or diverging from a center.