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English definition of “Geiger counter”

Geiger counter

noun [C]     /ˈɡaɪ.ɡəˌkaʊn.tər/ US  /-ɡɚˌkaʊn.t̬ɚ/
an electronic device for measuring the level of radioactivityWeighing, measuring and counting devices
(Definition of Geiger counter noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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