Stackable  

ZAM Network Wikibase™ Dictionary

When a Buff or item-effect can apply in concert with other effects of the same type without conflict we say the effect is stackable. Some effects may specify a maximum number of times it will stack, such as the Camelia Blossom Heal-Over-Time buff which can be stacked up to a max of 3 times, thereby tripling the per-tick healing.