Webster’s Revised Unabridged Dictionary · 1913
Radioli
Ra·di′o·li (rȧ·dī′ō·lī), n. pl.; sing. Radiolus (-lŭs). [NL., dim. of L. radius radius: cf. L. radiolus a feeble sunbeam.] (Zoöl.) The barbs of the radii of a feather; barbules.
Webster’s Revised Unabridged Dictionary · 1913
Ra·di′o·li (rȧ·dī′ō·lī), n. pl.; sing. Radiolus (-lŭs). [NL., dim. of L. radius radius: cf. L. radiolus a feeble sunbeam.] (Zoöl.) The barbs of the radii of a feather; barbules.