We found 50 dictionaries that define the word selenium:

General (24 matching dictionaries)

1. selenium: Longman Dictionary of Contemporary English
2. selenium: Merriam-Webster
3. selenium: Oxford Learner's Dictionaries
4. selenium: American Heritage Dictionary of the English Language
5. selenium: Collins English Dictionary
6. selenium: Vocabulary.com
7. Selenium, selenium: Wordnik
8. selenium: Cambridge Advanced Learner's Dictionary
9. selenium: Wiktionary
10. selenium: Webster's New World College Dictionary, 4th Ed.
11. selenium: The Wordsmyth English Dictionary-Thesaurus
12. selenium: Infoplease Dictionary
13. selenium: Dictionary.com
14. Selenium (software), Selenium: Wikipedia, the Free Encyclopedia
15. Selenium: Online Plain Text English Dictionary
16. selenium: Webster's Revised Unabridged, 1913 Edition
17. selenium: Rhymezone
18. Selenium: AllWords.com Multi-Lingual Dictionary
19. selenium: Webster's 1828 Dictionary
20. selenium: FreeDictionary.org
21. selenium: Mnemonic Dictionary
22. selenium: TheFreeDictionary.com

Art (1 matching dictionary)

23. Selenium: Health & Beauty Glossary

Business (1 matching dictionary)

24. selenium: Financial dictionary

Computing (1 matching dictionary)

25. selenium: Encyclopedia

Medicine (13 matching dictionaries)

26. selenium: Merriam-Webster Medical Dictionary
27. Dorland's Illustrated Medical Dictionary (No longer online)
28. Selenium: MedTerms.com Medical Dictionary
29. Medical Dictionary (No longer online)
30. Breast Cancer Talking Dictionary (No longer online)
31. Selenium: Merck Manuals
32. online medical dictionary (No longer online)
33. Hepatitis C Information Central (No longer online)
34. Selenium: Glossary of Herbs, Botanicals and Other Products
35. selenium: Dictionary of Cancer Terms
36. selenium: Medical dictionary
37. Selenium: Drug Medical Dictionary
38. Hyperdictionary (No longer online)

Science (3 matching dictionaries)

39. SELENIUM: The Mineral Gallery
40. Selenium: Extragalactic Astronomy
41. selenium: WebElements Periodic Table of the Elements

Sports (1 matching dictionary)

42. Selenium: Body Building

Tech (6 matching dictionaries)

43. selenium: Webster's New World Telecom Dictionary
44. Selenium: Ceramic Glossary Database
45. Beauty Glossary (No longer online)
46. Farrier & Hoofcare (No longer online)
47. Selenium: Beauty & Health Glossary
48. Illustrated Glass Dictionary (No longer online)

Definitions from Wiktionary ( ) ▸ noun:  A nonmetallic chemical element (symbol Se) with an atomic number of 34, used mainly in glassmaking and pigments and as a semiconductor. ▸ noun:  A single atom of this element. Similar: se, atomic number 34, sodium selenite, germanium diselenide, CuSe, silicon, germanium, arsenic, indium, tiemannite, more... Types: selenium dioxide, selenium trioxide, selenium sulfide, selenium disulfide, selenium telluride, more... Phrases: Selenium deficiency, selenium compounds, selenium sulfide, selenium cell, Selenium dioxide, more... Adjectives: amorphous, dietary, elemental, red, organic, metallic, crystalline, total, vitreous, inorganic, elementary Colors:     gray,     silver,     charcoal,     pewter,     graphite, more... ▸ Words similar to selenium ▸ Usage examples for selenium ▸ Idioms related to selenium ▸ Wikipedia articles (New!) ▸ Popular adjectives describing selenium ▸ Words that often appear near selenium ▸ Rhymes of selenium ▸ Invented words related to selenium