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English definition of “Geiger counter”

Geiger counter

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