発泡はっぽう Common Noun Irregular Intransitive Noun English jmdict 1 noun (common) (futsuumeishi) noun or participle which takes the aux. verb suru intransitive verbnouns which may take the genitive case particle 'no' foaming
発泡スチロールはっぽうスチロール Common Noun English jmdict 1 noun (common) (futsuumeishi) styrofoam;styrene foam;expanded polystyrene Other forms 発砲スチロール 【はっぽうスチロール】 (search-only kanji form)