Definition of expendable
(Entry 1 of 2)
: that may be expended: such as
a
: normally used up or consumed in service
expendable supplies like pencils and paper
b
: more easily or economically replaced than rescued, salvaged, or protected
expendable
nounDefinition of expendable (Entry 2 of 2)
: one that is expendable
—usually used in plural
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Merriam-Webster unabridged
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Time Traveler for expendable
The first known use of expendable was in 1805
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