Can the word accuracy be replaced by veracity?

No. “Accuracy” is about how close the stated thing is to reality. “Veracity” is about whether the stated thing matches reality. The accuracy of a measurement is an important factor in just about all scientific research. read more

While veracity and accuracy may be sometimes synonyms, I wouldn't describe the results of a scientific instrument's (hardware) measurements, or of a pathology test (biochemical), or of an IQ test (software), or of a political preference poll (software) as honest (which is what veracity implies, but as accurate and trustworthy in the sense that it usually doesn't give false-positives or false-negatives. read more