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fiducial

adjective

/fɪˈdjuːʃəl/

Meaning

based on trust or confidence; serving as a standard of reference

The fiducial point on the map ensures accurate measurements.

trustworthy, reliable, standard, benchmark

unreliable, doubtful

fiducial marker, fiducial point, fiducial standard

Unusually good; outstanding; better than what is normal or expected.

capable of being moved; not fixed in position

Of the same kind; alike.

Relating to the moon.

charming, attractive, or interesting

free from guilt or sin; pure; harmless; naive