1
- Law involving trust, especially with regard to the relationship between a trustee and a beneficiary【律】信托的; 信用的：
the company has a fiduciary duty to shareholders.
公司对股东负有信托责任。
1.1
- archaic held or given in trust〈古〉受信托的：
fiduciary estates.
受托财产。
1.2
- Finance (of a paper currency) depending for its value on securities (as opposed to gold) or the reputation of the issuer【财政】（纸币）信用发行的。
词源
late 16th cent. （in the sense 'something inspiring trust; credentials'）： from Latin fiduciarius, from fiducia 'trust', from fidere 'to trust'.