blue devil


Definition of blue devil

1 blue devils plural : low spirits : despondency, melancholy
2a : a common blue-rayed aster (Aster lowrieanus) of the eastern U.S.
3a : either of two Australian percoid fishes (Paraplesiops gigas and P. meleagris) brightly marked with light blue dots
b : a small brilliantly marked blue fish (Pomacentrus fuscus) of the West Indies

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First Known Use of blue devil

1756, in the meaning defined at sense 1

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The first known use of blue devil was in 1756

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