Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ephemera

1 sense of ephemera

Sense 1
ephemera -- (something transitory; lasting a day)
       => time -- (an indefinite period (usually marked by specific attributes or activities); "he waited a long time"; "the time of year for planting"; "he was a great actor in his time")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ephemeron

1 sense of ephemeron

Sense 1
ephemeron, ephemeral -- (anything short-lived, as an insect that lives only for a day in its winged form)
       => insect -- (small air-breathing arthropod)