A triangle at an intersection, formed by the two roads or rights-of-way and a third line, which must be kept clear of obstructions such as hedges so that people in one road can see cars approaching on the other.

plural of right triangle

An area in the Atlantic Ocean where many ships and planes have disappeared under allegedly mysterious circumstances. / A similar area in the Pacific Ocean.

(rare) Synonym of devil's threesome.

(yoga) Trikonasana.

(mathematical analysis) The inequality that states that the magnitude of the sum of two vectors is less than or equal to the sum of the magnitudes of the vectors, or any equivalent inequality in other spaces.

(American spelling) Alternative form of colour triangle

(British spelling) A plane triangular graph on which are drawn all the colours that can be made by the additive mixing of red blue and green; these three primary colours are at the apices, while white is in the middle.

A situation in which two suitors vie or compete for the love of the same person.

(geometry) A triangle having each of its three sides of different lengths.