Definition of "ephemerality" [ephemerality]

• The state or condition of being ephemeral; transience. (noun)
• Something that is ephemeral. (noun)

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• "An object whose identity is so deeply intertwined with its documentation is fraught with complexities and paradox, but given Smithson's interest in ephemerality and entropy, I'd imagine he'd be quite satisfied with the transient nature of his jetty - how it disappears and reappears at nature's will."
• "For an experience of the un-nameable on a colossal scale, as well as snapshots of commonplace people, one comes here, to Mr. Eisenman's memorial, where the materiality of stone competes and cooperates with the ephemerality of language and names, and where at least some of the names achieve a permanence of their own."
• "Fluxus's embrace of lightness, transformation and ephemerality is evident in works ranging from documented meals to musician John Cale's film of flashing police lights."