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hazmat

haz·mat [or] HAZMAT

hazmat [or] HAZMAT

 
pronunciation:
haez maet
part of speech: noun
definition: materials that are hazardous to human life or the environment, such as asbestos, radioactive materials, explosive materials, and poisons (often used as a modifier of a noun).
Because of the toxic chemicals that were released into the air by the explosion, the investigators came wearing hazmat suits.