radish fly (radishfli)

An American dipterous insect, Anthomyia raphani, injurious to the radish. radius (rā'di-us), n.; pl. radki (-1). [L. radius, a staff, rod, spoke of a wheel, a measuring-rod, a semidiameter of a circle (as it were a spoke of the wheel), a shuttle, spur of a bird, sting of a fish, the radius of the arm; by transfer, a beam of light, a ray. Cf. rayl (a doublet of radius) and the derived radiant, radiate, irra diate, etc.] 1. In math., one of a number of A D B