Usually means: Substances that alter mind, perception.
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We found 27 dictionaries that define the word psychoactive:

General (19 matching dictionaries)
  1. psychoactive: Longman Dictionary of Contemporary English
  2. psychoactive: Merriam-Webster
  3. psychoactive: Oxford Learner's Dictionaries
  4. psychoactive: American Heritage Dictionary of the English Language
  5. psychoactive: Collins English Dictionary
  6. psychoactive: Vocabulary.com
  7. Psychoactive, psychoactive: Wordnik
  8. psychoactive: Wiktionary
  9. psychoactive: Webster's New World College Dictionary, 4th Ed.
  10. psychoactive: The Wordsmyth English Dictionary-Thesaurus
  11. psychoactive: Infoplease Dictionary
  12. psychoactive: Dictionary.com
  13. Psychoactive: Wikipedia, the Free Encyclopedia
  14. psychoactive: Rhymezone
  15. psychoactive: FreeDictionary.org
  16. psychoactive: Mnemonic Dictionary
  17. psychoactive: TheFreeDictionary.com

Computing (1 matching dictionary)
  1. psychoactive: Encyclopedia

Medicine (6 matching dictionaries)
  1. psychoactive: Merriam-Webster Medical Dictionary
  2. Dorland's Illustrated Medical Dictionary (No longer online)
  3. online medical dictionary (No longer online)
  4. Glossary of HIV/AIDS Related Terms (No longer online)
  5. psychoactive: Medical dictionary
  6. Hyperdictionary (No longer online)

Slang (1 matching dictionary)
  1. psychoactive: Urban Dictionary

(Note: See psychoactives as well.)

Definitions from Wiktionary (
)
American English Definition British English Definition
adjective:  (pharmacology) Affecting the mind or mental processes.
noun:  (pharmacology) Any drug that affects the mind or mental processes.

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    neon green,     electric blue,     ultraviolet,     iridescent purple,     lime green, more...



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