miner's canary

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English[edit]

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Alternative forms[edit]

Noun[edit]

miner's canary (plural miner's canaries)

  1. A caged bird kept caged in mines because its demise provided a warning of dangerous levels of toxic gases.
  2. (idiomatic) Any thing, especially an organism, whose demise or distress provides an early warning of danger.

Related terms[edit]