Définitions
1.AdjectiveAccepted as a fixed basis of reference."Rulers and coins make good fiducial markers in photographs."
2.AdjectiveBased on having trust.
3.NounIn photography, a familiar reference object used to show size or scale, such as a ruler or a coin; a fiducial marker.
4.NounIn manufacturing, a small mark on a circuit board used to align components; a fiducial point.