Geiger counter

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Gei·ger count·er (also Gei·ger-Mül·ler count·er / ˈmələr; ˈmyoōlər/ ) • n. a device for measuring radioactivity by detecting and counting ionizing particles.

Geiger counter

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Geiger counter (Geiger-Müller counter) Instrument used to detect and measure the strength of radiation by counting the number of ionized particles produced. It is named after the German physicist Hans Geiger who developed the modern particle counter with Walther Müller at Kiel University.

Geiger counter

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Geiger counter (gy-ger kownt-er) n. a device for detecting and measuring the level of radioactivity of a substance. [ H. Geiger (1882–1945), German physicist]

Geiger counter

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Geiger counter See GEIGER—MÜLLER COUNTER.

Geiger counter

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Geiger counter See Geiger–Müller counter.