(anatomy) An area located in the superficial paraseptal endocardium of the right atrium.

(geology) A depression caused by the Afar Triple Junction, which is part of the Great Rift Valley in East Africa.

Alternative letter-case form of iron triangle

(anatomy) Small zones lying between the costal and sternal attachments of the thoracic diaphragm.

In hyperbolic geometry, a triangle whose vertices are all ideal; i.e. points at infinity, rather than real.

An optical illusion depicting an impossible solid object made of three straight beams of square cross section which meet pairwise at right angles at the vertices of the triangle they form.

A fractal consisting of three copies of itself, shrunk to half size, arranged in a triangular shape without rotating.

A test in which a potential consumer is asked to determine blindly which of three similar items is not identical to the other two.

plural of isosceles triangle

plural of love triangle