HAZMAT

or haz·mat

[ haz-mat ]
/ ˈhæzˌmæt /

noun

a material or substance that poses a danger to life, property, or the environment if improperly stored, shipped, or handled: regulations for transporting radioactive materials and other HAZMAT.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hazmat

British Dictionary definitions for hazmat

hazmat

/ (ˈhæzˌmæt) /

noun mainly US and Canadian

  1. substances that pose a danɡer to public health
  2. (as modifier)a hazmat suit

Word Origin for hazmat

C20: haz (ardous) + mat (erials)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012