noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A material, natural or man-made, which is intrinsically dangerous or otherwise poses a safety hazard, such as materials which are explosive, poisonous, chemically active (including acids and other corrosives), radioactive, or biologically active (including human blood and other medical waste).

Synonyms

All synonyms

asbestoschemical hazardchemical substanceflammable materialhazardous acidhazardous chemical substance

Antonyms

All antonyms

chemical safetysafe substanceair-dry clay