spinulous,a.|ˈspaɪnjʊləs| [f. spinule + -ous.] = spinulose a. 1846Dana Zooph. (1848) 155 A few of the foliaceous Astræidæ..have the surface simply striated and spinulous.1870H. A. Nicholson Man.Zool. 108 The sclerobasis..in the latter..is always either smooth or spinulous.