shadfly

shad·fly

[shad-flahy]
noun, plural shad·flies.
mayfly ( def 1 ).

Origin:
1830–40, Americanism; so called because they hatch at the time of year when shad are running

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Based on the Random House Dictionary, © Random House, Inc. 2013.
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WordNet
shadfly

noun
slender insect with delicate membranous wings having an aquatic larval stage and terrestrial adult stage usually lasting less than two days [syn: mayfly
WordNet® 3.0, © 2006 by Princeton University.
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00:10
Shadfly is always a great word to know.
So is ninnyhammer. Does it mean:
a fool or simpleton; ninny.
a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes.
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