hystricism
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hystricism — Path. (ˈhɪstrɪsɪz(ə)m) [ad. mod.L. hystricismus, f. hystrix porcupine.] The porcupine disease, an extreme form of ichthyosis (ichthyosis hystrix), in which the epidermis is covered with horny prominences. in Syd. Soc. Lex. in F. P. Foster Med.… … Useful english dictionary