We found 31 dictionaries that define the word polystyrene:

General (22 matching dictionaries)

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

Art (2 matching dictionaries)

21. polystyrene: ArtLex Lexicon of Visual Art Terminology
22. Technical Glossary of Theatre Terms (No longer online)

Business (2 matching dictionaries)

23. Construction Term Glossary (No longer online)
24. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

25. polystyrene: Encyclopedia

Medicine (3 matching dictionaries)

26. polystyrene: Merriam-Webster Medical Dictionary
27. Dorland's Illustrated Medical Dictionary (No longer online)
28. polystyrene: Medical dictionary

Tech (1 matching dictionary)

29. AUTOMOTIVE TERMS (No longer online)

(Note: See polystyrenes as well.)

Definitions from Wiktionary ( ) ▸ noun:  (organic chemistry) A vinylic polymer of styrene, CH₂CHphenyl. ▸ noun:  (organic chemistry) An alkane chain of benzene molecules, RCH₂CHphenylR. Similar: styrene, polystilbene, polystearate, styrene oxide, styryl, polychloroprene, vinylphenol, styrolene, styrol, styrenyl, more... Opposite: polyethylene, polypropylene, PVC, acrylic, nylon Types: styrofoam, Styrofoam, Styrofoam cups, Styrofoam cooler, more... Phrases: expanded polystyrene, polystyrene foam, Polystyrene sulfonate, extruded polystyrene, polystyrene cement, more... Adjectives: isotactic, high, impact, atactic, extruded, linked, sulfonated, expandable, foamed, molecular, pure Colors:     white,     light gray,     gray,     black,     blue, more... ▸ Word origin ▸ Words similar to polystyrene ▸ Usage examples for polystyrene ▸ Idioms related to polystyrene ▸ Wikipedia articles (New!) ▸ Popular adjectives describing polystyrene ▸ Words that often appear near polystyrene ▸ Rhymes of polystyrene ▸ Invented words related to polystyrene