poison-arrowfrog

poi·son-ar·row frog (poiʹzən-ărʹō) n.

Any of several small, often brightly colored terrestrial frogs that inhabit the rain forests of Central and South America and secrete from their skin some of the most poisonous biological toxins known, such as batrachotoxin.

  [From the use of the frog's toxic secretions to coat arrowheads.]

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