γραμματική ἐστιν ἐμπειρία τῶν παρὰ ποιηταῖς τε καὶ συγγραφεῦσιν ὡς ἐπὶ τὸ πολὺ λεγομένων → grammar is a practical knowledge of the usage of poets and writers of prose
P. τρίγωνον, τό.
musical instrument: P. τρίγωνον, τό, V. τρίγωνος, ὁ (Soph., Fragment).
