Fiduciary \Fi*du"ci*a*ry\, n.

1. One who holds a thing in trust for another; a trustee.

Instrumental to the conveying God's blessing upon those whose fiduciaries they are. --Jer. Taylor.

2. (Theol.) One who depends for salvation on faith, without works; an Antinomian. --Hammond.

Source: Webster's Revised Unabridged Dictionary (1913)