Word.ws English Dictionary

ephemerid

ephemerid noun: any in the family Ephemeridae of mayflies.

Noun

ephemerid (plural ephemerids)

  1. Any in the family Ephemeridae of mayflies.
    • I had flown in a helicopter with Javits and Bobby Kennedy. I was skirring around New York like an ephemerid, my jacket lined with jolly psychedelic green.1976 September, Saul Bellow, Humboldt’s Gift, New York, N.Y.: Avon Books, →ISBN, page 51

Forms of ephemerid

pluralephemerids

Origin of ephemerid

From translingual Ephemeridae, from New Latin ephemerus, from Ancient Greek ἐφήμερος (ephḗmeros), the more common form of ἐφημέριος (ephēmérios, “of, for, or during the day, living or lasting but for a day, short-lived, temporary”), from ἐπί (epí, “on”) + ἡμέρα (hēméra, “day”).

Questions about ephemerid

What does ephemerid mean?
Ephemerid means any in the family Ephemeridae of mayflies.
What part of speech is ephemerid?
Ephemerid is a noun.
What is the plural of ephemerid?
The plural of ephemerid is ephemerids.

Words near ephemerid in the dictionary

  1. ephemerans
  2. ephemeras
  3. ephemerellid
  4. ephemerellids
  5. ephemeric
  6. ephemerid
  7. ephemeride
  8. ephemerides
  9. ephemerids
  10. ephemeris
  11. ephemeris time

Source and license

Adapted from Wiktionary: ephemerid (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “ephemerid.” Word.ws, https://word.ws/ephemerid. Based on Wiktionary, CC BY-SA 4.0.