background radiation
[ băk′ground′ ]
n.
Relatively constant low-level radiation from environmental sources such as building materials, cosmic rays, and ingested radionucleides in the body.
Words nearby background radiation
barium sulphate,
barium thiosulfate,
barium titanate,
barium x-ray,
barium yellow,
background radiation,
bark beetle,
bark cloth,
bark is worse than his bite,
bark up the wrong tree,
barkeeper
Cultural definitions for background radiation
background radiation
Low-level radiation at the surface of the Earth that comes from cosmic rays and from small amounts of radioactive materials in rocks and the atmosphere.