τριγωνικός

ή, όν, Adv.
A. triangular, Ptol. Tetr. 38, Iamb. in Nic. p.58P.; πυραμίδες, on triangular base, Nicom. Ar. 2.14. Adv. ‐κῶς An.Ox. 3.195.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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