hystricism

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. Dict. 1960.