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variants:
or less commonly ichneumon fly
Definition of ichneumon wasp
: any of a large family (Ichneumonidae) of brown or black hymenopterous insects that have a slender body and long ovipositor and whose larvae are parasites of the larvae and pupae of various insects
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Merriam-Webster unabridgedWords at Play
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Time Traveler for ichneumon wasp
The first known use of ichneumon wasp was in 1671
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