• synonyms


[boo-nuh, byoo-]
  1. a brand of synthetic rubber made by polymerizing or copolymerizing butadiene with another material, as acrylonitrile, styrene, or sodium.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for buna

Historical Examples

  • As soon as the coins are struck, we shall divide the profits, wish one another 'buna nopte!'

    The Poor Plutocrats

    Maurus Jkai

  • They appear to have confidence that they will have justice under the Buna Ranee.

British Dictionary definitions for buna


  1. trademark a synthetic rubber formed by polymerizing butadiene or by copolymerizing it with such compounds as acrylonitrile or styrene
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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 buna


synthetic rubber made from butadiene, from German Buna, from first elements of butadiene, name of a hydrocarbon (related to butane; the suffix indicates the presence of two double bonds) + Na, indicating sodium (from natrium; see sodium).

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Online Etymology Dictionary, © 2010 Douglas Harper