|
|
 |
|
|
|
|
| Gei·ger count·er [ ggər kòwntər ] (plural Gei·ger coun·ters) |
noun |
|
| Definition: |
| |
radiation detector: an instrument used to measure the intensity of ionizing radiation by detecting particles from a radioactive substance
|
| [Early 20th century. After Hans Geiger (1882-1945), German physicist] |
|
|
|
