τριγωνικός
From LSJ
Οὕτως γὰρ ἠγάπησεν ὁ Θεὸς τὸν κόσμον, ὥστε τὸν Υἱὸν τὸν μονογενῆ ἔδωκεν, ἵνα πᾶς ὁ πιστεύων εἰς Αὐτὸν μὴ ἀπόληται ἀλλ᾽ ἔχῃ ζωὴν αἰώνιον → For God so loved the world that he gave his only begotten Son that whosoever believeth in him should not perish but have everlasting life (John 3:16)
English (LSJ)
ή, όν,
A triangular, Ptol.Tetr.38, Iamb. in Nic.p.58P.; πυραμίδες, on triangular base, Nicom.Ar.2.14. Adv. -κῶς An.Ox. 3.195.
Greek (Liddell-Scott)
τρῐγωνικός: -ή, -όν, ὅμοιος τριγώνῳ, ἀποτελῶν τρίγωνον, Ἰάμβλ., Πτολ. - Ἐπίρρ. -κῶς, Ἀνέκδ. Ὀξων. τ. 3, σ. 195.