[adjective trahy-ang-gyuh-lit, -leyt; verb trahy-ang-gyuh-leyt]
verb (used with object), tri·an·gu·lat·ed, tri·an·gu·lat·ing.
  1. to make triangular.
  2. to divide into triangles.
  3. to survey (an area) by triangulation.

Origin of triangulate

1600–10; < Medieval Latin triangulātus, past participle of triangulāre to make triangles. See triangle, -ate1
Related formstri·an·gu·la·tor, nounsub·tri·an·gu·late, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for triangulate

Contemporary Examples of triangulate

Historical Examples of triangulate

  • A triangulate is a rectilineall figure compounded of triangles.

  • The sides of a triangulate are two more than are the triangles of which it is made.

  • But in a Triangulate the matter is to be prooved by demonstration.

  • Therefore by a triangle there may be inscribed a triangulate of 6.

  • If I had a transit, I could calculate the depth at any point where the water shows––triangulate with a vertical angle.

    Out of the Depths

    Robert Ames Bennet

British Dictionary definitions for triangulate


verb (traɪˈæŋɡjʊˌleɪt) (tr)
    1. to survey by the method of triangulation
    2. to calculate trigonometrically
  1. to divide into triangles
  2. to make triangular
adjective (traɪˈæŋɡjʊlɪt, -ˌleɪt)
  1. marked with or composed of triangles
Derived Formstriangulately, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for triangulate

1833, originally in surveying," from Latin triangulum (see triangle) + -ate (2). Related: Triangulated; triangulating. Figurative use by 1860.

Online Etymology Dictionary, © 2010 Douglas Harper