Definition from Wiktionary, the free dictionary
Alternative forms 
From Japanese 柔術 (jūjutsu).
- A method of self-defence established in Japan emphasizing “jū” (soft or gentle) “jitsu” (art or technique). Japanese martial art that utilizes a large variety of techniques in defense against an opponent.
- Brazilian jiu-jitsu, a related art, derived from judo.
Related terms 
method of self-defence established in Japan