‖ ˈschistus Obs.
Also 9 shistus, 7 in Gr. form schistos.
[mod.L.; see schist1.]
= schist1.
[1601 Holland Pliny xxxv. xv. II. 558 Of alume..there is one kind which the Greeks call Schistos, and the nature thereof is to cleave along into certaine filaments or threads like haires. 1623 Cockeram 111, Schistos, a stone of Saffron colour, easie to be cleft into thin plates.] 1775 Masson in Phil. Trans. LXVI. 306 A kind of rotten schistus or slate. 1799 Monthly Rev. XXX. 12 Micaceous shistus, granite, gneiss, chlorite-shistus, sand-stone, and lime-stone. 1831 Brewster Optics xiv. 115 Take a plate of regularly formed mother-of-pearl, with its surfaces nearly parallel, and grind these surfaces upon a hone or upon a plate of glass with the powder of schistus. |