wast·age 
/ˈweɪstɪʤ/ noun
/ˈweɪstɪʤ/ noun [noncount] : wasteful use of something valuable : loss of something by using too much of it or using it in a way that is not necessary or effective
▪ The current system results in a large amount of wastage. [=a lot of material is wasted because of the current system] ▪ wastage of valuable resources ▪ avoid food/water wastage — see also natural wastage
▪ The current system results in a large amount of wastage. [=a lot of material is wasted because of the current system] ▪ wastage of valuable resources ▪ avoid food/water wastage — see also natural wastage
