We found 14 dictionaries that define the word halcion:

General (11 matching dictionaries)

1. Halcion: American Heritage Dictionary of the English Language
2. Halcion: Vocabulary.com
3. Halcion: Wordnik
4. Halcion: Infoplease Dictionary
5. Halcion, halcion: Dictionary.com
6. Halcion: Wikipedia, the Free Encyclopedia
7. Halcion: Rhymezone
8. halcion: FreeDictionary.org
9. halcion: Mnemonic Dictionary
10. Halcion: TheFreeDictionary.com
11. Halcion: Wiktionary

Medicine (2 matching dictionaries)

12. Halcion: Merriam-Webster Medical Dictionary
13. Halcion: Medical dictionary

Slang (1 matching dictionary)

14. halcion: Urban Dictionary

(Note: See halcions as well.)

Definitions from Wiktionary (Halcion) ▸ noun:  (pharmacology) Brand name for triazolam. Opposite: stimulant, excitant, analeptic ▸ Words similar to halcion ▸ Usage examples for halcion ▸ Idioms related to halcion ▸ Wikipedia articles (New!) ▸ Popular adjectives describing halcion ▸ Words that often appear near halcion ▸ Rhymes of halcion ▸ Invented words related to halcion