Legal Definition of Donor: The giver; one who makes a gift or sets up a trust. In medical jurisprudence, one who gives blood or an organ to a recipient | Discover the Role and Significance of Donors: Learn the Legal Definition and How it Impacts Your Business Operations. Explore examples of charitable, organ, and blood donors, and understand why understanding the legal definition of a donor is crucial for compliance, ethics, and protecting recipients. Embrace the importance of donors and make a positive impact through your business