trilaterus

trĭlătĕrus, a, um, adj. [ter-latus],

• three-sided, trilateral: forma, Front. Expos. Form. p. 35 Goes.

trilaterus, a, um (tres u. latus), dreiseitig, trigonum, Censor. fr. 7, 2: forma, Gromat. vet. 105, 16: figura, ibid. 378, 6 u. 14.

trilaterus [CL], three-sided. rectilineae figurae sunt quae rectis continentur lineis, quarum quedam ~ae tribus rectis lineis Adel. Elem. I def. 20; figurarum ~arum: alia [figura] est triangulus trium inequalium laterum Ib. I def. 21; si mundus esset alterius forme ‥ sc. ~e vel quadrilatere Sacrob. Sph. 80; aliud quoque [claustrum] ~um, a coquina usque ad ostium claustri regularis G. S. Alb. I 290.

trĭlătĕrus, a, um (tres, latus), qui a trois côtés : Censor. 7, 2 ; Grom. 105, 16.