Lewis Short
(adjective) : turbĭnātus, a, um, 2. turbo
* Coneshaped, pointed like a cone, conical.
* In gen.: adamas ... turbinatus in mucronem,Plin. 37, 4, 15, § 56; 11, 37, 69, § 181. —Comp.: turbinatior piris figura,Plin. 15, 15, 17, § 58.
* As adj. propr.: lapis Turbinatus,Inscr. Orell. 3304 and 6616.
Charlton T. Lewis, Charles Short, A Latin Dictionary