We found 6 dictionaries that define the word defense system:

General (6 matching dictionaries)

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

(Note: See defense_systems as well.)

Definitions from WordNet (defense system) ▸ noun:  the weaponry available for the defense of a region Phrases: missile defense system, basic point defense missile system, department of defense laboratory system, defense message system, Missile Defense Alarm System, more... ▸ Words similar to defense system ▸ Usage examples for defense system ▸ Idioms related to defense system ▸ Wikipedia articles (New!) ▸ Words that often appear near defense system ▸ Rhymes of defense system ▸ Invented words related to defense system