radioactive material
Emits ionizing particles
Radioactive material is any substance containing atoms with unstable nuclei that emit radiation as they decay.
The term covers everything from uranium ore to medical isotopes to nuclear waste.
Handling radioactive materials requires special precautions: Workers wore protective suits when transporting the radioactive material.
The phrase often appears in regulatory and safety contexts.
- nuclear powerEnergy from splitting atoms
- uraniumElement ninety-two
- yellow cakeConcentrated uranium oxide powder
- smoke detectorsDevices sensing airborne combustion particles
- plutoniumActinide, atomic number 94
dirty bomb · lead shielding · containment breach · radium · Geiger counter · strontium-90 · sterilization · cesium-137 · radiotherapy · thorium · dosimeter · iodine-131 · bioaccumulation · radiocarbon dating · soil contamination · hazmat suit · fallout shelter · Chernobyl disaster
- hazmathazmat suit, hazmat, biohazard, dangerous goods, toxic
- restricted goodscontraband, hazmat, dangerous goods, hazardous cargo, controlled substances
- Nuclear Threatsdirty bomb, dirty bombs, nuclear threat, nuclear terrorism, plutonium
radio, radios, radioactive, radioactivity, radiate, radiated, radiates, radiating, radiation