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Definitions for expendability. Here are all the possible meanings and translations of the word expendability. Wiktionary(0.00 / 0 votes)Rate this definition: expendability(Noun) The state or quality of being expendable.
DEFINITION of 'Surplus'. Surplus is the amount of an asset or resource that exceeds the portion that is utilized. A surplus is used to describe many excess assets including income, profits, capital and goods. A surplus often occurs in a budget, when expenses are less than the income taken in or in inventory when fewer supplies are used than were retained.