An instrument for measuring electric current in milliamperes.
- ‘As the sensitivity of such milliammeters is usually low, it is necessary first to amplify the polarographic current.’
- ‘The reading on the milliammeter is a direct measurement of the amount of light reaching the Earth at that point.’
- ‘For example, the milliammeter may be calibrated to read in cubic feet per minute.’
- ‘X-ray machines used for diagnosis or treatment therefore need to have voltmeters and milliammeters for proper adjustment.’