Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of a family of synthetic rubbers made from the polymerization of butadiene with a sodium catalyst. Copolymers including styrene or acrylonitrile are the most common members of this group.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun made by polymerizing butadiene
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[From Buna, former trademark for such rubber.]
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