vinegarroon

also vin·e·ga·rone (-rōn')
n.
A large whip scorpion (Mastigoproctus giganteus)of the southern United States and Mexico that emits a strong vinegary odor when disturbed.

[American Spanish vinagrón, from Spanish vinagre, vinegar, from Old Spanish, from Old French vinaigre. See vinegar.]

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The noun has one meaning:

Meaning #1: large whipscorpion of Mexico and southern United States that emits a vinegary odor when alarmed
  Synonym: Mastigoproctus giganteus

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