styrene Syllabification: (sty·rene)Pronunciation: /ˈstīˌrēn/Definition of styrene noun Chemistry an unsaturated liquid hydrocarbon obtained as a petroleum byproduct. It is easily polymerized and is used to make plastics and resins. Chemical formula: C6H5CH=CH2 Origin: late 19th century: from styrax + -enestyrene in other Oxford dictionaries Definition of styrene in the British & World English dictionary
