Fiducial

//fəˈd(j)uːʃəl// adj, noun

Definitions

Adjective
  1. 1
    Accepted as a fixed basis of reference.

    "Rulers and coins make good fiducial markers in photographs."

  2. 2
    Based on having trust.
Adjective
  1. 1
    based on trust wordnet
  2. 2
    used as a fixed standard of reference for comparison or measurement wordnet
  3. 3
    relating to or of the nature of a legal trust (i.e. the holding of something in trust for another) wordnet
Noun
  1. 1
    In photography, a familiar reference object used to show size or scale, such as a ruler or a coin; a fiducial marker.
  2. 2
    In manufacturing, a small mark on a circuit board used to align components; a fiducial point.

Etymology

Etymology 1

From Late Latin fīdūciālis, from fīdūcia (“trust, reliance”) + -ālis, from fīdō (“I trust”).

Etymology 2

From Late Latin fīdūciālis, from fīdūcia (“trust, reliance”) + -ālis, from fīdō (“I trust”).

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