(adjective) : trĭformis, e, ter - forma
* Having three forms, shapes, or natures; threefold, triple, triform (poet.): Chimaera,Hor. C. 1, 27, 23: canis,i. e. Cerberus,Sen. Herc. Oet. 1202: Geryon,id. Agam. 841: diva, i. e. Diana, who was also Luna and Hecate, Hor. C. 3, 22, 4; called also triformis dea, Ov. M. 7, 94: mundus, because composed of air, earth, and water,id. ib. 15, 859.