Capable of expiring, ending, or ceasing to be valid; liable to come to an end.
From expire + -able suffix. The term combines the Latin expirare (to breathe out, die) with the productive English suffix -able (capable of), creating a modern English word for things that can end.
Expirable goods, contracts, and licenses are everywhere in modern life—the word became much more common with industrialization when things needed legal expiration dates and shelf lives.
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