anything short-lived or ephemeral.
ephemera, items designed to be useful or important for only a short time, especially pamphlets, notices, tickets, etc.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use ephemeron in a sentence
It’s no wonder that it outlasted hip-hop ephemera of the same time—the pendants of Death Row, No Limit, or Cash Money Records.How the Roc-A-Fella Chain Became a Symbol of Hip Hop Royalty | Sowmya Krishnamurthy | February 21, 2022 | Time
At the Badin Museum, which houses a collection of ephemera from the town’s storied history, curator David Summerlin reminisced about his history with the plant.A North Carolina town struggles under the toxic shadow of the company that built it | Emily Cataneo/Undark | December 17, 2021 | Popular-Science
I was drawn to ephemera from the Young Pioneers, which I later learned was a Scout-like movement run through schools to instill communist thought.A cycling trail through Poland and Germany — and Soviet-era history | Diane Daniel | October 8, 2021 | Washington Post
All the techniques can turn your flowers from ephemera into mementoes.
Let not the ephemeron that lights on a baby's hand generalize too rashly upon the non-growing of organisms!
Its three hundred and sixty-five years were now as but the day of the ephemeron.The Sand-Hills of Jutland | Hans Christian Andersen
Like the ephemeron fly, they are born suddenly, and may be expected to die as soon.Thoughts on Man | William Godwin
The airy nothing of a sigh bears often a pastoral world or an orcus on its ephemeron's-wing.Titan: A Romance v. 1 (of 2) | Jean Paul Friedrich Richter
The scent was so strong that the ephemeron was almost intoxicated by it.The Sand-Hills of Jutland | Hans Christian Andersen
British Dictionary definitions for ephemeron
(usually plural) something transitory or short-lived
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012