κεραύνιον
τό
A.
truffle, Tuber aestivum, Thphr. HP 1.6.5, Gal. 19.731.
II.
critical mark to indicate corrupt passages, Isid. Etym. 1.21.21, Sch.Il.ip.xliii Dind.; but πρὸς τὴν ἀγωγὴν τῆς φιλοσοφίας D.L. 3.66.
III.
= κεραυνία λίθος, PHolm. 5.40, Isid. Etym. 16.13.5, etc.