We found 31 dictionaries that define the word essential oil:

General (18 matching dictionaries)

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

Art (1 matching dictionary)

17. Essential Oil: Health & Beauty Glossary

Computing (1 matching dictionary)

18. essential oil: Encyclopedia

Medicine (5 matching dictionaries)

19. essential oil: Merriam-Webster Medical Dictionary
20. Essential oil: MedTerms.com Medical Dictionary
21. essential oil: Dictionary of Cancer Terms
22. Essential oil: Medical dictionary
23. Essential oil: Drug Medical Dictionary

Science (2 matching dictionaries)

24. Chemistry Dictionary (No longer online)
25. Botanical Terms (No longer online)

Tech (4 matching dictionaries)

26. Book Binding (No longer online)
27. Essential Oil (aka EO): Dictionary of Candlemaking Terms
28. Essential Oil: Beauty & Health Glossary
29. Glossary for the Modern Soap Maker (No longer online)

(Note: See essential_oils as well.)

Definitions from Wiktionary (essential oil) ▸ noun:  A volatile oil, used to make perfumes and flavourings, especially one having the characteristic odour of the plant from which it is obtained. Similar: volatile oil, citronella oil, isovaleric acid, absolute, aromatick, odourant, bourgeonal, nerolidol, olibene, oil of wintergreen, more... Types: lavender, peppermint, tetree, lemon, eucalyptus, rosemary, clove, ginger, more... Phrases: Bergamot essential oil, Cannabis flower essential oil, essential oil used in perfumery, essential flower oil, more... Adjectives: citrous, hederiform, noisette, violet, damask, vined, scitamineous, olive, dilly, mignonette, ginger ▸ Words similar to essential oil ▸ Usage examples for essential oil ▸ Idioms related to essential oil ▸ Wikipedia articles (New!) ▸ Words that often appear near essential oil ▸ Rhymes of essential oil ▸ Invented words related to essential oil