Definition of ephemeron in English:

ephemeron

Pronunciation /iˈfeməˌrän/ /ɪˈfɛməˌrɑn/

nounephemerons

  • An insect that lives only for a day or a few days.

Origin

From Greek, neuter of ephēmeros ‘lasting only a day’.

Pronunciation

ephemeron

/iˈfeməˌrän/ /ɪˈfɛməˌrɑn/