I. fə̇ˈd(y)üshēˌerē, fīˈ-, -ri adjective
Etymology: Latin fiduciarius, from fiducia trust + -arius -ary
1. : holding, held, or founded in trust or confidence
2. : of, having to do with, or involving a confidence or trust : of the nature of a trust
a fiduciary capacity
a fiduciary relation
3. : resting upon public confidence for value or currency
fiduciary fiat money
II. noun
( -es )
: one (as a corporate trust company or the trust department of a bank) that holds a fiduciary relation or acts in a fiduciary capacity to another (as one whose funds are entrusted to it for investment)
III. adjective
: being a mark or set of marks in the reticle of an optical instrument used as a point of reference or for a measure