We found 8 dictionaries that define the word major tranquillizer:

General (6 matching dictionaries)

1. major tranquillizer: Vocabulary.com
2. major tranquillizer: Dictionary.com
3. major tranquillizer: Rhymezone
4. major tranquillizer: FreeDictionary.org
5. major tranquillizer: Mnemonic Dictionary
6. major tranquillizer: TheFreeDictionary.com

Computing (1 matching dictionary)

7. major tranquillizer: Encyclopedia

Medicine (1 matching dictionary)

8. major tranquillizer: Medical dictionary

(Note: See major_tranquillizers as well.)

Definitions from WordNet (major tranquillizer) ▸ noun:  tranquilizer used to treat psychotic conditions when a calming effect is desired ▸ Words similar to major tranquillizer ▸ Usage examples for major tranquillizer ▸ Idioms related to major tranquillizer ▸ Wikipedia articles (New!) ▸ Words that often appear near major tranquillizer ▸ Rhymes of major tranquillizer ▸ Invented words related to major tranquillizer