distermĭnus

a, um, adj.

dis-terminus

I. separated, divided: Tartessos latis distermina terris, Sil. 5, 399.—
II. Act., separating, parting.—As subst.: distermĭna, ae, f. (sc. linea), the diameter, diagonal, Mart. Cap. 6, § 714.
Lewis & Short
A Latin Dictionary, 1879
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