2. the squandering of money, energy, or resources: "the dissipation of the country's mineral wealth"Similarsquanderingfrittering (away)wastemisspendingexpenditurewild spendingdrainingdepletionlosinglossOppositesavingpreservation
▪ loss of energy, especially by its conversion into heat:"energy dissipation"
Word Originlate Middle English (in the sense ‘complete disintegration’): from Latin dissipatio(n-), from the verb dissipare (see dissipate).