A small American spider (Hyptiotes cavatus) that lives among the dead branches of evergreen trees. It constructs a triangular web, or net, usually composed of four radii crossed by a double elastic fiber. The spider holds the thread at the apex of the web and stretches it tight, but lets go and springs the net when an insect comes in contact with it.

The state of being a one-trick pony.

A group of three callous-manipulative personality traits: narcissism, Machiavellianism, and psychopathy.

(geometry) A polyhedron, one of the Johnson solids, whose faces are composed of 13 triangles, 3 squares, 3 pentagons, and 1 hexagon.

The set of three factors that precipitate venous thrombus formation: endothelial dysfunction or injury, hemodynamic changes, and hypercoagulability.

plural of one-trick pony

A region of Thailand, Laos, Myanmar, famous for production of opium and heroin. / A region of Victoria, Australia, where the Victorian Gold Rush occurred.

(graph theory) Of an undirected graph in which no three vertices form a triangle of edges.

(slang) To stimulate one's vulva against another vulva; to scissor.

plural of trigger warning