radial vein n.
Any of several veins continuing the palmar metacarpal veins on the lateral side and accompanying the radial artery.
[rey-dee-uh n] /ˈreɪ di ən/ noun, Mathematics. 1. the measure of a central angle subtending an arc equal in length to the : equal to 57.2958°. Abbreviation: rad. /ˈreɪdɪən/ noun 1. an SI unit of plane angle; the angle between two radii of a circle that cut off on the circumference an arc equal in […]
[rey-dee-uh ns] /ˈreɪ di əns/ noun 1. brightness or light: the radiance of the tropical sun. 2. warm, cheerful brightness: the radiance of her expression. 3. Rare. . /ˈreɪdɪəns/ noun (pl) -ances, -ancies 1. the quality or state of being radiant 2. a measure of the amount of electromagnetic radiation leaving or arriving at a […]
[rey-dee-uh n-see] /ˈreɪ di ən si/ noun, plural radiancies. 1. .
- Radiant efficiency
noun 1. the ratio of the power emitted by a source of radiation to the power consumed by it ηe