Correspondence with fact or truth
Freedom from error
The state of being without error
The quality of precision or deftness
Proving their accuracy is up to the authorities.
The problem is the further I go into the past, the less accuracy I can attain.
The accuracy of heats of combustion determined in the closed calorimeter is in favourable cases about one-half per cent.
The angle through which the arm was moved, or, in the latter case, the angle between the two arms, was read off upon a finely graduated arc. With such means no very high accuracy was possible.