ephemeron
noun
ephem·er·on
ə̇ˈfeməˌrän
plural ephemera -m(ə)rə 
also ephemerons
also ephemerons -məˌränz
1
: ephemerid
2
: ephemeral entry 2
Word History
Etymology
New Latin, from Greek ephemēron May fly, from neuter of ephemēros lasting a day, short-lived, daily
- adrenalized
- adrenalizes
- adrenalizing
- adrenally
- adrenals
- adrenarches
- adrenergic
- adrenergically
- adrenin
- adrenine
- adreno-
- adrenochrome
- adrenochromes
- adrenocortical
- adrenocorticosteroid
- adrenocorticosteroids
- adrenocorticotrophic
- adrenocorticotrophic hormone
- adrenocorticotrophin
- adrenocorticotrophins
- adrenocorticotropic
- adrenocorticotropic hormone
- adrenocorticotropin
- adrenocorticotropins
- adrenoleucodystrophy