plural of color triangle

A region of Central America consisting of Guatemala, El Salvador, and Honduras.

A space next to a solid object, which (according to a disputed theory) a person should occupy in order to reduce the risk of injury inside a collapsing building, e.g. during earthquake. The crushing of the solid object is said to form a slope that protects the nearby space in the manner of a roof.

A region bounded by the vertices at Reno, Nevada, USA; Las Vegas, Nevada, USA; Fresno, California, USA; containing part of the Sierra Nevadas (a mountain range in the Rocky Mountain Cordillera); the triangle falling mostly in the U.S. state of Nevada; where many plane crashes occur and planes disappear.

A region of Bolivia, Chile, Argentina, in the Atacama Desert, which produces much of the world's lithium supply, and contain most of the known world lithium reserves

plural of golden triangle

plural of Pascal's triangle

A region of West Yorkshire, between Wakefield, Morley and Rothwell, famous for producing early forced rhubarb.

An area that is dangerous and where people or vessels may disappear. / A set of three things considered dangerous.

(anatomy) A triangular region that is a landmark in the neck, has its apex above at the occipital bone, and is bounded in front by the sternocleidomastoid muscle, behind by the anterior margin of the trapezius, and inferiorly by the middle third of the clavicle.