Definition of indicator diagram in English:

indicator diagram

Pronunciation /ˈindəˌkādər ˈdīəˌɡram/ /ˈɪndəˌkeɪdər ˈdaɪəˌɡræm/


  • A diagram of the variation of pressure and volume within a cylinder of a reciprocating engine.

    ‘They enthusiastically took up the innovation and soon found they could use the indicator diagram to give a direct measure of an engine's power subject to certain requirements.’
    • ‘It is computed using indicator diagrams which measure conditions in the cylinders.’