Buna

[ boo-nuh, byoo- ]
/ ˈbu nə, ˈbyu- /

Trademark.

a brand of synthetic rubber made by polymerizing or copolymerizing butadiene with another material, as acrylonitrile, styrene, or sodium.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for buna

Buna
/ (ˈbuːnə, ˈbjuː-) /

noun

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