(40) "Trust company" means a corporation existing under the laws of this state on April 1, 1975, or organized under this chapter and authorized by law to engage in the business of acting as a fiduciary.

(5) "Trust company" means a corporation as defined in paragraph (40) of Code Section 7147-1-4 or a national bank having:

(17) "Trust company" means a financial institution, corporation, or other legal entity authorized to exercise general trust powers in this state.