Geiger

[crater] This is a not-quite symmetrical crater formation with small outward bulges along the north and northeast. The rim to the southeast is less well-formed than elsewhere. The northern inner wall is more extensive than elsewhere, slumping across about one-third the inner floor. The interior is otherwise relatively level and is marked by...
Found on http://en.wikipedia.org/wiki/Geiger_(crater)

Geiger

Type: Term Pronunciation: gī′gĕr Definitions: 1. Hans, German physicist, 1882-1945. See: Geiger-Müller counter, Geiger-Müller tube
Found on http://www.medilexicon.com/medicaldictionary.php?t=36566

Geiger

[n] - German physicist who developed the Geiger counter (1882-1945)
Found on http://www.webdictionary.co.uk/definition.php?query=Geiger
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