Source : Webster's Revised Unabridged Dictionary (1913)

Radiale \Ra`di*a"le\, n.; pl. {Radialia}. [NL. See {Radial}.]
   1. (Anat.) The bone or cartilage of the carpus which
      articulates with the radius and corresponds to the
      scaphoid bone in man.

   2. pl. (Zo["o]l.) Radial plates in the calyx of a crinoid.