least count

The highest degree of accuracy of measurement that can be achieved.

日本語の意味

計測機器が持つ測定可能な最小の値（最小分解能、最小刻み）

When calibrating the instrument, the least count determines the highest degree of accuracy achievable for every measurement.

機器を校正する際、最小測定単位が各測定で達成可能な最高の精度を決定します。

意味（1）

The highest degree of accuracy of measurement that can be achieved.

The least count of a voltmeter is the minimum change that can be discerned.

least counts

（ plural ）