fi·du·cia·ry 1 /fə-'dü-shə-rē, -'dyü-, -shē-ˌer-ē/ n pl -ries: one often in a position of authority who obligates himself or herself to act on behalf of another (as in managing money or property) and assumes a duty to act in good faith and with care, candor, and loyalty in fulfilling the obligation: one (as an agent) having a fiduciary duty to another see also fiduciary duty at duty, fiduciary relationship compare principal
fiduciary 2 adj [Latin fiduciarius, from fiducia trust, transfer of a property on trust]
1: of, relating to, or involving a confidence or trust
a guardian acting in his fiduciary capacity
2: of or relating to a fiduciary or the position of a fiduciary
a fiduciary bond
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.