جَلْجَلَةٌ

[apparently verbal noun of جَلْجَلَ, q. v.;] The sound, or sounding, of a جُلْجُل, (S,) or of a جَرَس [or bell]; (TA;) and of thunder: (S, K:) and vehemence of sound: and a threatening (K, TA) from behind a thing covering or concealing. (TA.)