Lewis Short
(adj.adv.) : mētālis, e, adj.meta, III. 3
* Conical (post-class.): forma, Paul. ex Fest. s. v. tutulum, p. 335 Müll.—Hence, adv.: mētālĭ-ter, conically (post-class.): majus corpus ejus quo umbra metaliter jacitur, quam umbra ipsa,Mart. Cap. 8, § 859; id. 8, § 870.
Charlton T. Lewis, Charles Short, A Latin Dictionary