Definition of "mayflies" [mayflies]

• Plural form of mayfly. (noun)

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• "It strikes me as much more American to prefer accurate officiating so that the merit of the players (and occasionally, the whims of nature – see the mayflies from the Cleveland/New York ACLS a few years ago, or the high winds that turned an NYM game into a home run derby this year) is the deciding factor."
• "The ecologist added: We believe climate change may be a factor because warmer winters and springs could lead to aquatic insects such as mayflies and caddis flies hatching earlier in the season and not being available to the scoter ducklings when they hatch out themselves."
• "Though they're often dubbed "mayflies," because they hatch during the month of May, this insect is actually a caddis and not a mayfly."