fiducial

fiducial is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.Having the nature of a trust; fiduciary; as, fiducial power. Spelman. Fiducial edge (Astron. & Surv.), the straight edge of the alidade or ruler along which a straight line is to be drawn. -- Fiducial line or point (Math. & Physics.), a line or point of reference, as for setting a graduated circle or scale used for measurments.

Source: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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