We found 45 dictionaries that define the word formaldehyde:

General (23 matching dictionaries)

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

Business (2 matching dictionaries)

22. formaldehyde: Financial dictionary
23. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

24. formaldehyde: Encyclopedia

Medicine (8 matching dictionaries)

25. formaldehyde: Merriam-Webster Medical Dictionary
26. Dorland's Illustrated Medical Dictionary (No longer online)
27. Formaldehyde: MedTerms.com Medical Dictionary
28. Medical Dictionary (No longer online)
29. online medical dictionary (No longer online)
30. formaldehyde: Dictionary of Cancer Terms
31. formaldehyde: Medical dictionary
32. Formaldehyde: Drug Medical Dictionary

Miscellaneous (1 matching dictionary)

33. Brilliant Dream Dictionary (No longer online)

Science (3 matching dictionaries)

34. Formaldehyde: Eric Weisstein's World of Chemistry
35. Formaldehyde: Extragalactic Astronomy
36. Atmospheric Chemistry and Air Quality (No longer online)

Slang (1 matching dictionary)

37. Formaldehyde: Urban Dictionary

Tech (6 matching dictionaries)

38. Book Binding (No longer online)
39. Glossary of Meteorology (No longer online)
40. Explosives (No longer online)
41. Schlumberger Oilfield Glossary (No longer online)
42. Glossary of Energy Terms (No longer online)
43. Chemical Fact Sheet (No longer online)

(Note: See formaldehydes as well.)

Definitions from Wiktionary ( ) ▸ noun:  (organic chemistry) The simplest aldehyde, HCHO, a colourless gas that has many industrial applications; it dissolves in water to give formol (10%) and formalin. Similar: methanal, formyl, thioformaldehyde, formol, paraformaldehyde, chloroformyl, propionaldehyde, methanol, hemiformal, formaline, more... Opposite: informaldehyde, casualdehyde, relaxeddehyde Phrases: formaldehyde solution, urea formaldehyde, phenol formaldehyde, melamine formaldehyde, urea formaldehyde resin, more... Adjectives: free, urea, phenol, gaseous, commercial, aqueous, melamine, neutral, excess, pure, more ▸ Word origin ▸ Words similar to formaldehyde ▸ Usage examples for formaldehyde ▸ Idioms related to formaldehyde ▸ Wikipedia articles (New!) ▸ Popular adjectives describing formaldehyde ▸ Words that often appear near formaldehyde ▸ Rhymes of formaldehyde ▸ Invented words related to formaldehyde