We found 49 dictionaries that define the word arsenic:

General (28 matching dictionaries)

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

Art (2 matching dictionaries)

27. arsenic: ArtLex Lexicon of Visual Art Terminology
28. Natural Magick (No longer online)

Business (3 matching dictionaries)

29. arsenic: Legal dictionary
30. arsenic: Financial dictionary
31. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

32. arsenic: Encyclopedia

Medicine (8 matching dictionaries)

33. arsenic: Merriam-Webster Medical Dictionary
34. Dorland's Illustrated Medical Dictionary (No longer online)
35. Arsenic: MedTerms.com Medical Dictionary
36. Medical Dictionary (No longer online)
37. online medical dictionary (No longer online)
38. arsenic: Dictionary of Cancer Terms
39. arsenic: Medical dictionary
40. Arsenic: Drug Medical Dictionary

Miscellaneous (1 matching dictionary)

41. Encyclopedia of Graphic Symbols (No longer online)

Science (4 matching dictionaries)

42. Archaeology Wordsmith (No longer online)
43. ARSENIC: The Mineral Gallery
44. Arsenic: Extragalactic Astronomy
45. arsenic: WebElements Periodic Table of the Elements

Slang (1 matching dictionary)

46. arsenic: Urban Dictionary

Tech (1 matching dictionary)

47. Illustrated Glass Dictionary (No longer online)

Definitions from Wiktionary ( ) ▸ noun:  A toxic grey brittle nonmetallic chemical element (symbol As) with an atomic number of 33. ▸ noun:  (countable) A single atom of this element. ▸ noun:  Arsenic trioxide. ▸ adjective:  (chemistry) Of or containing arsenic with a valence of 5. Similar: arsenic trioxide, as, arsenous anhydride, arsenous oxide, atomic number 33, arsenick, arsnike, arsenic trisulfide, arsenic sulphide, arsenate, more... Opposite: antidote, non-poison, harmless, safe Types: organic, inorganic, arsenic trioxide, arsenic pentoxide, arsenic oxychloride, arsenic oxyarsenite, more... Phrases: Arsenic poisoning, arsenic trioxide, arsenic acid, white arsenic, organic arsenic, more... Adjectives: white, inorganic, metallic, total, trivalent, little, soluble, native, more, pentavalent, yellow Colors:     paris green,     poison green,     apple green,     lime green,     chartreuse, more... ▸ Word origin ▸ Words similar to arsenic ▸ Usage examples for arsenic ▸ Idioms related to arsenic ▸ Wikipedia articles (New!) ▸ Popular adjectives describing arsenic ▸ Popular nouns described by arsenic ▸ Words that often appear near arsenic ▸ Rhymes of arsenic ▸ Invented words related to arsenic