ALL meanings of background radiation
back·ground ra·di·a·tion
B b - noun background radiation low-intensity radiation from, for example, small amounts of radioisotopes in soil, air, building materials, etc 3
- noun background radiation low-intensity, multidimensional microwave radiation present in space: its existence is used to support the validity of the big-bang theory since it is thought to be a remnant of the original explosion 3
- noun background radiation low levels of natural radiation existing on earth as a result of high-energy cosmic rays, the radioactive decay of rock, etc. 3
- noun background radiation radiation in the environment 1
- noun background radiation ionizing radiation that is naturally present in the environment. 0