出典:Wikipedia
出典:『Wikipedia』 (2011/07/14 06:09 UTC 版)
The katana (刀 ) is a type of Japanese sword (日本刀 nihontō ), also commonly referred to as a "samurai sword", and generally defined as the standard size moderately curved (as opposed to the older "tachi" style featuring more curvature) Japanese sword with a blade length greater than 60 cm (23.6 inches).