We found 26 dictionaries that define the word styrofoam:

General (22 matching dictionaries)

1. styrofoam: Longman Dictionary of Contemporary English
2. Styrofoam: Merriam-Webster
3. styrofoam: Oxford Learner's Dictionaries
4. Styrofoam: American Heritage Dictionary of the English Language
5. Styrofoam: Collins English Dictionary
6. Styrofoam: Vocabulary.com
7. Styrofoam, styrofoam: Wordnik
8. Styrofoam, styrofoam: Cambridge Advanced Learner's Dictionary
9. styrofoam: Wiktionary
10. Styrofoam: Webster's New World College Dictionary, 4th Ed.
11. Styrofoam: The Wordsmyth English Dictionary-Thesaurus
12. Styrofoam: Infoplease Dictionary
13. styrofoam: Dictionary.com
14. Styrofoam: Online Etymology Dictionary
15. styrofoam: Cambridge Essential American English Dictionary
16. Styrofoam (disambiguation), Styrofoam (musician), Styrofoam: Wikipedia, the Free Encyclopedia
17. Styrofoam: Rhymezone
18. styrofoam: FreeDictionary.org
19. styrofoam: Mnemonic Dictionary
20. Styrofoam: TheFreeDictionary.com

Art (1 matching dictionary)

21. Styrofoam: ArtLex Lexicon of Visual Art Terminology

Computing (1 matching dictionary)

22. styrofoam: Encyclopedia

Medicine (1 matching dictionary)

23. Styrofoam: Medical dictionary

Slang (1 matching dictionary)

24. Styrofoam: Urban Dictionary

Definitions from Wiktionary (styrofoam) ▸ noun:  Expanded polystyrene foam, such as is used in cups and packaging. Similar: foamboard, foam board, foam core, bun stock, foamcore, plasticard, bubble wrap, Gatorfoam, composite board insulation, padded envelope, more... Opposite: biodegradable, decomposable, eco-friendly, sustainable, natural Types: styrofoam cups, styrofoam peanuts, more... Adjectives: white, thick, blue, inch, floral, green, rigid, lightweight, small, soft, thin Colors:     white,     light gray,     pale blue,     soft pink,     mint green, more... ▸ Word origin ▸ Words similar to styrofoam ▸ Usage examples for styrofoam ▸ Idioms related to styrofoam ▸ Wikipedia articles (New!) ▸ Popular adjectives describing styrofoam ▸ Words that often appear near styrofoam ▸ Rhymes of styrofoam ▸ Invented words related to styrofoam