Definitions

1. noun

A device for detecting and measuring ionizing radiation, typically used to detect the presence of radioactive materials.

“The geiger counter was used to scan the abandoned mine for radiation.”

2. proper noun

A German physicist who invented the geiger counter and made significant contributions to the field of nuclear physics.

“Heinrich Geiger was a prominent figure in the development of nuclear physics.”

3. verb

To detect or measure radiation using a geiger counter.

“The technicians had to geiger the entire area before allowing the workers to enter.”