poly-butene

polybutylene

[pol-ee-byoot-l-een]
noun Chemistry.
any of several polymers of butylene, used chiefly in the manufacture of lubricants and synthetic rubber.
Also, polybutene [pol-ee-byoo-teen] .


Origin:
poly- + butylene

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WordNet
polybutylene

noun
a polymer of butylene; used in lubricants and synthetic rubber 
WordNet® 3.0, © 2006 by Princeton University.
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