A.empty, hollow, “σφαῖρα” Sor. 1.93; “τὸ δ.” gap, breach, Th.4.135,5.71; “τὸ δ. τοῦ ὀδόντος” Antyll. ap. Orib.10.36.3; interval, Aristox.Harm.p.26 M.; “τὰ δ.” hollows, Pl.Ti. 58b, 60e; διάκενον δεδορκότα with a vacant stare, of skeletons, Luc. Nec.15.
διά-κενος , ον,