Petrogale \Pe*trog"a*le\ (p[-e]*tr[o^]g"[.a]*l[=e]), n. [NL., fr. Gr. pe`tra a rock + galh^ a weasel.] (Zool.) Any Australian kangaroo of the genus {Petrogale}, as the rock wallaby ({Petrogale penicillata}). [1913 Webster]