Webster’s Revised Unabridged Dictionary · 1913
Spinescent
Spi·nes′cent (spī·nĕs′sent), a.[L. spinescens, -entis, p. pr. of spinescere to know to grow thorny, fr. spina a thorn: cf. F. spinescent.] (Bot.) Becoming hard and thorny; tapering gradually to a rigid, leafless point; armed with spines. Gray.