Hypertext Webster Gateway: "dogday"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Dog day \Dog" day`\ or Dogday \Dog"day`\
One of the dog days.
{Dogday cicada} (Zo["o]l.), a large American cicada ({C.
pruinosa}), which trills loudly in midsummer.
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