Buna

[boo-nuh, byoo-]

Origin

Buna www.rubbercal.com/Buna_N Commercial Grade Buna-N Rubber Products in Stock or Custom Made.

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Trademark.

a brand of synthetic rubber made by polymerizing or copolymerizing butadiene with another material, as acrylonitrile, styrene, or sodium.

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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Collins

World English Dictionary

Buna (ˈbuːnə, ˈbjuː-)

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

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline

Word Origin & History

buna

synthetic rubber made from butadine, from Ger. Buna, from first elements of butadine + natrium.

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Buna

Bu·na