Source : Webster's Revised Unabridged Dictionary (1913)

Setose \Se*tose"\, Setous \Se"tous\, a. [L. setosus, saetosus,
   from seta, saeta, bristle: cf. F. s['e]teux.]
   Thickly set with bristles or bristly hairs.

Source : WordNet®

setose
     adj : having or covered with protective barbs or quills or spines
           or thorns or setae etc.; "a horse with a short bristly
           mane"; "bristly shrubs"; "burred fruits"; "setaceous
           whiskers" [syn: {barbed}, {barbellate}, {briary}, {briery},
            {bristled}, {bristly}, {burred}, {burry}, {prickly}, {setaceous},
            {spiny}, {thorny}]