n. 1 (pl. ephemera) (usu. in pl.) a a thing (esp. a printed item) of short-lived interest or usefulness. b a short-lived thing. 2 (pl. ephemerons) = EPHEMERA(1) 1.
[ as EPHEMERA(1) ]
EPHEMERON
Meaning of EPHEMERON in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012