polybutylene

[ pol-ee-byoot-l-een ]
/ ˌpɒl iˈbyut lˌin /

noun Chemistry.

any of several polymers of butylene, used chiefly in the manufacture of lubricants and synthetic rubber.
Also pol·y·bu·tene [pol-ee-byoo-teen] /ˌpɒl iˈbyu tin/.

Origin of polybutylene

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019