Longman Dictionary of Contemporary English homepage

Date: 1900-2000
Origin: Hans W. Geiger (1882-1945), German scientist who invented it (with Walter M. Müller)

Geiger counter

 noun
     
Related topics: Measurement
Gei‧ger count‧er [countable]
TM an instrument that finds and measures radioactivity
Definition from the Longman Dictionary of Contemporary English
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