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WORDNET DICTIONARY
OXFORD DICTIONARY
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WORDNET DICTIONARY
Noun polypropylene has 1 sense
- polypropylene(n = noun.substance) polypropene - a polymer of propylene used as a thermoplastic molding material; is a kind of plastic
OXFORD DICTIONARY
polypropylene, n. Chem. any of various polymers of propylene including thermoplastic materials used for films, fibres, or moulding materials. Also called POLYPROPENE.