We found 27 dictionaries that define the word controlled substance:

General (16 matching dictionaries)

1. controlled substance: Merriam-Webster
2. controlled substance: American Heritage Dictionary of the English Language
3. controlled substance: Vocabulary.com
4. controlled-substance: Wordnik
5. controlled substance: Wiktionary
6. controlled substance: The Wordsmyth English Dictionary-Thesaurus
7. controlled substance: Infoplease Dictionary
8. controlled substance: Dictionary.com
9. Controlled substance: Wikipedia, the Free Encyclopedia
10. controlled substance: Rhymezone
11. controlled substance: FreeDictionary.org
12. controlled substance: Mnemonic Dictionary
13. controlled substance: TheFreeDictionary.com
14. controlled substance: Longman Dictionary of Contemporary English

Business (6 matching dictionaries)

15. controlled substance: Merriam-Webster Legal Dictionary
16. controlled substance: Law.com Dictionary
17. Everybody's Legal Dictionary (No longer online)
18. Glossary of Legal Terms (No longer online)
19. controlled substance: Legal dictionary
20. BusinessDictionary.com (No longer online)

Computing (1 matching dictionary)

21. controlled substance: Encyclopedia

Medicine (3 matching dictionaries)

22. Dorland's Illustrated Medical Dictionary (No longer online)
23. online medical dictionary (No longer online)
24. controlled substance: Medical dictionary

Tech (1 matching dictionary)

25. DOD Dictionary of Military Terms (No longer online)

(Note: See controlled_substances as well.)

Definitions from Wiktionary (controlled substance) ▸ noun:  (law, criminology) A drug or chemical whose use, possession, manufacture, or sale is regulated or banned by the government. Similar: controlled drug, substance, drug of choice, drug, prescription drug, street drug, hard drug, drugge, drugg, gateway drug, more... Opposite: legal substance Types: depressant, stimulant, hallucinogen, opioid, more... Adjectives: prodrug, counterdrug, addicting, antinarcotics, narcotics, jonesing, addictive, habit-forming, narcotised, narced, narcotized ▸ Words similar to controlled substance ▸ Usage examples for controlled substance ▸ Idioms related to controlled substance ▸ Wikipedia articles (New!) ▸ Words that often appear near controlled substance ▸ Rhymes of controlled substance ▸ Invented words related to controlled substance