triquetrus

trĭquē̆trus, a, um, adj., having three corners, three-cornered, triangular.

I.

In gen.:

triquetra aliis, aliis quadrata,

Lucr. 4, 653:

ager (opp. quadratus),

Col. 5, 2, 1:

figura (opp. quadrata),

Plin. 2, 25, 23, § 93:

(Britannia) insula naturā triquetra,

Caes. B. G. 5, 13:

Martis sidus numquam stationem facere Jovis sidere triquetro,

i. e. distant by a third of the zodiac, Plin. 2, 17, 15, § 77; also as subst.: trĭquē̆trum, i, n., the trinal aspect, that in which a planet ' s longitude differs by one-third of a circle from the earth ' s:

in triquetro,

id. 2, 15, 12, § 59; 2, 18, 16, § 80.—

II.

In partic., as adj. prop., of or belonging to the island of Sicily, Sicilian:

orae,

Lucr. 1, 717; Sil. 5, 489:

tellus,

Hor. S. 2, 6, 55; cf. Quint. 1, 6, 30.