(ˌ)ēˌpänəˈmyüd.ə noun
Usage: capitalized
Etymology: New Latin, probably irregular from Greek hyponomeutēs miner, from hyponomeuein to undermine, from hyponomos underground passage, from hyponemesthai to eat away beneath, from hypo- + nemesthai to take food, graze, present middle infin. of nemein to pasture — more at nimble
: a genus of black-spotted white moths that is the type of the family Yponomeutidae and that comprises the ermine moths