Having three angles; three-cornered, triangular. Also quasi-adv. In the form of a triangle, triangularly.

Three-cornered, triangular. Obsolete.

Having, or arranged in, the form of a triangle; contained by three sides and angles; three-cornered, three-sided.

Of, pertaining or relating to, a trigon or triangle; of the form of a triangle, having three angles, triangular. (In quot. 1570 = triangular, adj. 2b)

= trilateral, adj.

= triangulate, adj. 1.

Having three angles, triangular; in later use only in Natural History, applied to parts or structures of triangular form.

Triangular.

= triangular, adj. 1.

Three-sided triangular; in Natural History of triangular cross-section, three-edged, trihedral, triangularly prismatic or pyramidal.

Contained by three sides; three-sided.

= trilinear, adj. Also as n., a trilineal figure.

Of, contained by, or having some relation to, three lines (including curved as well as straight lines).

Of or pertaining to a trigon or triangle.

= trigonal, adj. 1 and 2.

Triangular.