Hyporadius
Pronunciation : Hy`po*ra"di*us
Part of Speech : n.;
Etymology : [Pref. hypo- + radius.] (Zo?l.)
Definition : Defn: One of the barbs of the hypoptilum, or aftershaft of a feather. See Feather.
pl. Hyporadii.
Source : Webster's Unabridged Dictionary, 1913