fi·du·cial adjective \fə-ˈdü-shəl, -ˈdyü-, fī-\
: taken as standard of reference <a fiducial mark>
: founded on faith or trust
First Known Use of FIDUCIAL
Learn More About FIDUCIAL
Seen & Heard
What made you want to look up fiducial? Please tell us where you read or heard it (including the quote, if possible).