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ecohazard

[ek-oh-haz-erd, ee-koh-]
noun
  1. any substance or activity that poses a threat to a habitat or an environment: Off-the-road motorcycling is an ecohazard to fragile desert habitats.
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Origin of ecohazard

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018