Complex sentence: Kusari gusoku (chain armour) is the Japanese term for mail armour, when the word "kusari" is used in conjunction with an armoured item it usually means that the "kusari" makes up the majority of the armour defence.
Split into simpler sentences: Kusari gusoku (chain armour) is the Japanese term for mail armour. When the word "kusari" is used in conjunction with an armoured item it usually means that the "kusari" makes up the majority of the armour defence.