cochlis

cochlis, ĭdis, f., = κοχλίς,

• a precious stone like a snail-shell in form, Plin. 37, 12, 74, § 194.

cochlis, lidis, f. (κοχλίς), ein schneckenförmiger Edelstein, Plin. 37, 193. – columna cochlis, Säule mit umlaufender Treppe, Wendeltreppe, P. Victor. reg. U. R. 8 u. 9.

cochlis, ĭdis, f. (κοχλίς), sorte de pierre précieuse en forme dʼescargot : Plin. 37, 193 || adj. columna cochlis P. Vict. Urb. Rom. Regio 8, colonne qui renferme un escalier en colimaçon.

COCHLIS

COCHLIS(κοχλίς) is an adjective used with columna by P. Victor (Reg. Urb. Rom. viii. and ix.) to denote such columns as the Trajan and Antonine [COLUMNA], probably on account of the spiral staircase (κοχλίας: COCLEANo. 4) with-in the column, rather than the spiral bas-relief on the outside, as he carefully gives the number of steps in each staircase.

[P.S] [J.H.F]