transcription, транскрипция: [ ˈgī-gər- ]
noun
Etymology: Hans Geiger died 1945 German physicist
Date: 1924
: an instrument for detecting the presence and intensity of radiations (as cosmic rays or particles from a radioactive substance) by means of their ionizing effect on an enclosed gas which results in a pulse that is amplified and fed to a device giving a visible or audible indication