We found 21 dictionaries that define the word oil of vitriol:

General (14 matching dictionaries)

1. oil of vitriol: Merriam-Webster
2. oil of vitriol: Oxford Learner's Dictionaries
3. oil of vitriol: American Heritage Dictionary of the English Language
4. oil of vitriol: Collins English Dictionary
5. oil of vitriol: Vocabulary.com
6. oil of vitriol: Wordnik
7. oil of vitriol: Wiktionary
8. oil of vitriol: The Wordsmyth English Dictionary-Thesaurus
9. oil of vitriol: Dictionary.com
10. Oil of vitriol: Wikipedia, the Free Encyclopedia
11. oil of vitriol: Rhymezone
12. oil of vitriol: FreeDictionary.org
13. oil of vitriol: Mnemonic Dictionary
14. oil of vitriol: TheFreeDictionary.com

Art (1 matching dictionary)

15. Natural Magick (No longer online)

Business (1 matching dictionary)

16. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

17. oil of vitriol: Encyclopedia

Medicine (4 matching dictionaries)

18. oil of vitriol: Merriam-Webster Medical Dictionary
19. online medical dictionary (No longer online)
20. oil of vitriol: Medical dictionary
21. University of Maryland Glossary of Medical Terms (No longer online)

(Note: See oil_of_vitriols as well.)

Definitions from Wiktionary (oil of vitriol) ▸ noun:  (inorganic chemistry, dated) Sulfuric acid. Similar: sulphuric acid, sulfuric acid, vitriol, sulphuricum, spirit of vitriol, vitriolic acid air, vitriolic acid, sulphovinic acid, disulphuric acid, oleum, more... Phrases: sweet oil of vitriol, more... ▸ Words similar to oil of vitriol ▸ Usage examples for oil of vitriol ▸ Idioms related to oil of vitriol ▸ Wikipedia articles (New!) ▸ Words that often appear near oil of vitriol ▸ Rhymes of oil of vitriol ▸ Invented words related to oil of vitriol