We found 18 dictionaries that define the word tranquilliser:

General (13 matching dictionaries)

1. tranquilliser: Collins English Dictionary
2. tranquilliser: Vocabulary.com
3. tranquilliser: Wordnik
4. tranquilliser: Cambridge Advanced Learner's Dictionary
5. tranquilliser: Wiktionary
6. tranquilliser: Dictionary.com
7. Tranquilliser: Wikipedia, the Free Encyclopedia
8. tranquilliser: Rhymezone
9. tranquilliser: FreeDictionary.org
10. tranquilliser: Mnemonic Dictionary
11. tranquilliser: TheFreeDictionary.com

Business (1 matching dictionary)

12. tranquilliser: Legal dictionary

Computing (1 matching dictionary)

13. tranquilliser: Encyclopedia

Medicine (3 matching dictionaries)

14. tranquilliser: Merriam-Webster Medical Dictionary
15. online medical dictionary (No longer online)
16. tranquilliser: Medical dictionary

(Note: See tranquillisers as well.)

Definitions from Wiktionary ( ) ▸ noun:  Non-Oxford British English standard spelling of tranquilizer. [That which tranquillizes or soothes.] Similar: tranquilizer, tranq, quietive, tranx, calmant, relaxative, calmative, relaxant, relaxer, mother's little helper, more... Opposite: stimulant, energizer, excitant Phrases: minor tranquilliser, major tranquilliser, more... ▸ Words similar to tranquilliser ▸ Usage examples for tranquilliser ▸ Idioms related to tranquilliser ▸ Wikipedia articles (New!) ▸ Popular adjectives describing tranquilliser ▸ Words that often appear near tranquilliser ▸ Rhymes of tranquilliser ▸ Invented words related to tranquilliser