EPHEMERA
- something of very short life or duration [n EPHEMERAE, EPHEMERAS]
- a mayfly (a winged insect) [n EPHEMERAS or EPHEMERAE]
- per items (as posters, broadsides, and tickets) that were originally meant to be discarded after use but have since become collectibles
- a plural of ephemeron
- insect of the order Ephemeroptera, comprising the mayflies
- anything short-lived or ephemeral
- items designed to be useful or important for only a short time, esp. pamphlets, notices, tickets, etc.
- something of no lasting significance usually used in plural