Geiger

[gahy-ger] /ˈgaɪ gər/
noun
1.
Hans
[hahns] /hɑns/ (Show IPA),
1882–1947, German physicist.
British Dictionary definitions for Geiger

Geiger

/ˈɡaɪɡə/
noun
1.
Hans (hans). 1882–1945, German physicist: developed the Geiger counter
Geiger in Science
Geiger
  (gī'gər)   
German physicist who was a pioneer in nuclear physics. He invented numerous instruments and techniques used to detect charged particles, including the Geiger counter (1908).