Styrofoam vs. Polystyrene

Styrofoam vs. Polystyrene — Is There a Difference?
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Difference Between Styrofoam and Polystyrene

Styrofoamnoun

Expanded polystyrene foam, such as is used in cups and packaging.

Polystyrenenoun

(organic chemistry) A vinylic polymer of styrene, CH2CHphenyl.

Styrofoamnoun

a light resilient foam of polystyrene

Polystyrenenoun

(organic chemistry) An alkane chain of benzene molecules, RCH2CHphenylR.

Polystyrenenoun

a polymer of styrene; a rigid transparent thermoplastic;

expanded polystyrene looks like a rigid white foam and is used as packing or insulation
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