Noun mastigoproctus giganteus has 1 sense
  1. vinegarroon, Mastigoproctus giganteus - large whip-scorpion of Mexico and southern United States that emits a vinegary odor when alarmed
    --1 is a kind of whip-scorpion, whip scorpion
    --1 is a member of Mastigoproctus, genus Mastigoproctus
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