We found 22 dictionaries that define the word hydrocarbons:

General (9 matching dictionaries)

1. hydrocarbons: Merriam-Webster
2. hydrocarbons: Collins English Dictionary
3. hydrocarbons: Vocabulary.com
4. Hydrocarbons, hydrocarbons: Wordnik
5. hydrocarbons: Cambridge Advanced Learner's Dictionary
6. hydrocarbons: Wiktionary
7. hydrocarbons: Dictionary.com
8. Hydrocarbons: Wikipedia, the Free Encyclopedia
9. Hydrocarbons: TheFreeDictionary.com

Computing (1 matching dictionary)

10. Hydrocarbons: Encyclopedia

Medicine (3 matching dictionaries)

11. hydrocarbons: Merriam-Webster Medical Dictionary
12. hydrocarbons: Medical dictionary
13. University of Maryland Glossary of Medical Terms (No longer online)

Science (1 matching dictionary)

14. Chemistry Dictionary (No longer online)

Tech (8 matching dictionaries)

15. Hydrocarbons: Glossary of Air Pollution Terms
16. AUTOMOTIVE TERMS (No longer online)
17. Glossary of Meteorology (No longer online)
18. Oil Analysis (No longer online)
19. Oil and Gas Well Drilling and Servicing eTool (No longer online)
20. HYDROCARBONS: Power Engineering
21. Glossary of Water Resource Terms (No longer online)
22. Lake and Water Word Glossary (No longer online)

(Note: See hydrocarbon as well.)

Definitions from Wiktionary (hydrocarbon) ▸ noun:  (organic chemistry) A compound consisting only of carbon and hydrogen atoms. ▸ Also see hydrocarbon Opposite: nonhydrocarbons, inorganic compounds, minerals Phrases: aromatic hydrocarbons, chlorinated hydrocarbons, saturated hydrocarbons, halogenated hydrocarbons, polycyclic hydrocarbons, more... Adjectives: aromatic, polycyclic, unsaturated, saturated, aliphatic, liquid, chlorinated, volatile, higher, gaseous, halogenated ▸ Words similar to hydrocarbons ▸ Usage examples for hydrocarbons ▸ Idioms related to hydrocarbons ▸ Wikipedia articles (New!) ▸ Popular adjectives describing hydrocarbons ▸ Words that often appear near hydrocarbons ▸ Rhymes of hydrocarbons ▸ Invented words related to hydrocarbons