1 buna | Definition of buna
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buna

noun
bu·​na | \ ˈbyü-nə How to pronounce buna (audio) , ˈbü-\

Definition of buna

: any of several rubbers made by polymerization or copolymerization of butadiene

First Known Use of buna

1936, in the meaning defined above

History and Etymology for buna

from a trademark

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