Fiducial Definition

fĭ-do͝oshəl, -dyo͝o-, fī-
adjective
Based on firm faith.
Webster's New World
Relating to or characteristic of a legal trust; fiduciary.
American Heritage
Used as a standard of reference for measurement or calculation.
A fiducial point.
Webster's New World
Webster's New World
Synonyms:
noun

In manufacturing, a small mark on a circuit board used to align components, a fiducial point.

Wiktionary

Other Word Forms of Fiducial

Noun

Singular:
fiducial
Plural:
fiducials

Origin of Fiducial

  • Late Latin fīdūciālis from Latin fīdūcia trust from fīdere to trust bheidh- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin fiducialis, from fiducia (“trust”), from fido (“to trust”)

    From Wiktionary

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