spinescent

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spinescent

(spī-nĕs′ənt)
adj. Biology
1. Having a spine or spines.
2. Terminating in a spine.

spi·nes′cence n.
References in periodicals archive ?
The induction of spinescence in European holly leaves by browsing ungulates.
Experimental evidence suggests that spinescence deters feeding by vertebrates and that it could increase under selective pressure exerted by browsing animals (Obeso, 1997).