ephemerid

/ɪˈfɛmərɪd/
noun
  1. An insect of the order Ephemeroptera; a mayfly.
    • Ephemerids are known for their extremely short adult lifespan, often just a day.
    • The fisherman used a lure that mimicked an adult ephemerid.
    • An ephemerid emerged from the stream and flew toward the light.
What does "ephemerid" mean? | whatsthatwordmean | whatsthatwordmean