Pronunciation: (fi-dOO'shē-er"ē, -dyOO'-), [key]
—n., pl. -ar•ies,
Law.a person to whom property or power is entrusted for the benefit of another.
1. Law.of or pertaining to the relation between a fiduciary and his or her principal: a fiduciary capacity; a fiduciary duty.
2. of, based on, or in the nature of trust and confidence, as in public affairs: a fiduciary obligation of government employees.
3. depending on public confidence for value or currency, as fiat money.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.