What is "kusarigama"

n. A Japanese martial arts chain weapon that consists of a kama (the Japanese equivalent of a sickle), on a length of kusari (metal chain) with a heavy fundo (iron weight) at the end; a chain sickle.

The is a traditional Japanese weapon that consists of a kama (the Japanese equivalent of a sickle) on a kusari-fundo – a type of metal chain (kusari) with a heavy iron weight (fundo) at the end. The kusarigama is said to have developed during the Muromachi period. The art of handling the kusarigama is called kusarigamajutsu.