τρίπλευρος
From LSJ
English (LSJ)
ον,
A three-sided, Str.5.1.2; Astrol., trine, of aspect, Max.52,447, Cat.Cod.Astr.1.146; facing three ways, of a column on the march, Arr.Tact.28.4,5, Ael.Tact. 36.4,5. II τρίπλευρα, τά, perh. part of a victim, SIG982.22 (Pergam., ii B. C.).