polystyrene

 : 
Noun
 : 
pol=y=sty=rene

WORDNET DICTIONARY

Noun polystyrene has 1 sense

OXFORD DICTIONARY

polystyrene, n. a thermoplastic polymer of styrene, usu. hard and colourless or expanded with a gas to produce a lightweight rigid white substance, used for insulation and in packaging.


For further exploring for "polystyrene" in Webster Dictionary Online


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