Fiduciary

adj. of or pertaining to a trustee (Law); based on or involving trust or confidence; based on public confidence

n. trustee, one who holds property or power for the benefit of another (Law)

This page is about fiduciary in the legal sense. For optical field of view markers, see fiduciary marker. The fiduciary duty is a legal relationship between two or more parties (most commonly a "fiduciary" or "trustee" and a "principal" or "beneficiary") that in English common law is arguably the most important concept within the portion of the legal system known as equity. In the United Kingdom, the Judicature Acts merged the courts of Equity (historically based in England's Court of Chancery) with the courts of common law, and as a result the concept of fiduciary duty also became usable in common law courts.
See more at Wikipedia.org...

Noun
1. a person who holds assets in trust for a beneficiary; "it is illegal for a fiduciary to misappropriate money for personal gain"
(hypernym) person, individual, someone, somebody, mortal, human, soul
(hyponym) conservator
Adjective
1. relating to or of the nature of a legal trust (i.e. the holding of something in trust for another); "a fiduciary contract"; "in a fiduciary capacity"; "fiducial power"
(synonym) fiducial
(pertainym) trust

an individual, corporation or association holding assets for another party, often with the legal authority and duty to make decisions regarding financial matters on behalf of the other party.

A legal duty of loyalty and faithfulness. - (read more on Fiduciary)