βροντεῖον
From LSJ
τί δὲ βλέπεις τὸ κάρφος τὸ ἐν τῷ ὀφθαλμῷ τοῦ ἀδελφοῦ σου, τὴν δὲ ἐν τῷ σῷ ὀφθαλμῷ δοκὸν οὐ κατανοεῖς → why do you look at the speck of sawdust in your brother's eye and pay no attention to the plank in your own eye | and why beholdest thou the mote that is in thy brother's eye, but considerest not the beam that is in thine own eye | why do you see the speck that is in your brother's eye, but don't consider the beam that is in your own eye
English (LSJ)
τό,
A engine for making stage-thunder, Poll.4.130.
German (Pape)
[Seite 464] τό, Donnermaschine auf dem Theater, Poll. 4, 130.
Greek (Liddell-Scott)
βροντεῖον: τό, μηχανὴ πρὸς παραγωγὴν βροντῶν ἐν τῇ σκηνῇ τοῦ θεάτρου, Πολυδ. Δ΄, 130.
Spanish (DGE)
-ου, τό
aparato para imitar en la escena el ruido del trueno Poll.4.130.