noun
absolute error
Technical term in measurement and statistics: the magnitude of the difference between a measured value and the true value, without regard to sign.
測定値の絶対誤差を計算する。
Calculate the absolute error of the measured value.
相対誤差 (relative error) expresses the error as a fraction of the true value, while 絶対誤差 gives the raw difference.
Compound of 絶対 (absolute) and 誤差 (error). A straightforward technical term with no obscure historical derivation.