Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun styrofoam

1 sense of styrofoam

Sense 1
Styrofoam -- (a light resilient foam of polystyrene)
       => polystyrene -- (a polymer of styrene; a rigid transparent thermoplastic; "expanded polystyrene looks like a rigid white foam and is used as packing or insulation")
       => foam -- (a lightweight material in cellular form; made by introducing gas bubbles during manufacture)