trilateral

[trahy-lat-er-uh l]
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Origin of trilateral

1650–60; < Latin trilater(us) three-sided + -al1. See tri-, lateral
Related formstri·lat·er·al·i·ty, nountri·lat·er·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


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British Dictionary definitions for trilateral

trilateral

adjective
  1. having three sides
Derived Formstrilaterally, 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 trilateral
adj.

1650s, from Latin trilaterus "three-sided;" see tri- + lateral. The Trilateral Commission (representing Japan, the U.S., and Europe) was founded 1973.

Online Etymology Dictionary, © 2010 Douglas Harper