Definitions

1. noun

A person, thing, or event that is transitory or fleeting, lasting for a very short time.

“The firefly’s glow is a fleeting ephemeron in the night sky.”

2. noun

A short-lived literary or artistic movement.

“The brief, avant-garde movement of the 1920s was a notable ephemeron in the art world.”

3. noun

A short-lived fashion trend or style.

“The brightly colored sneakers were a brief ephemeron in the fashion world.”