'Radiolus' definitions:

Definition of 'Radiolus'

From: GCIDE

Radioli \Ra*di"o*li\ (r[.a]*d[imac]"[-o]*l[imac]), n. pl.; sing. Radiolus (r[.a]*d[imac]"[-o]*l[u^]s). [NL., dim. of L. radius radius: cf. L. radiolus a feeble sunbeam.] (Zool.) The barbs of the radii of a feather; barbules. [1913 Webster]