spandex

[ span-deks ]
/ ˈspæn dɛks /

noun Chemistry.

a synthetic fiber composed of a long-chain polymer, used chiefly in the manufacture of garments to add elasticity.

Origin of spandex

First recorded in 1955–60; anagram of expands
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for spandex

spandex
/ (ˈspændɛks) /

noun

a type of synthetic stretch fabric made from polyurethane fibre

Word Origin for spandex

C20: coined from an anagram of expands
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