Noun order euphausiacea has 1 sense
  1. Euphausiacea, order Euphausiacea - small commonly luminescent crustaceans; important element of marine plankton: krill
    --1 is a kind of animal order
    --1 is a member of Malacostraca, subclass Malacostraca
    --1 has members: krill; Euphausia pacifica
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