| 1. | a person who gives or donates. |
| 2. | Medicine/Medical. a person or animal providing blood, an organ, bone marrow cells, or other biological tissue for transfusion or transplantation. |
| 3. | Law. a person who gives property by gift, legacy, or devise, or who confers a power of appointment. |
| 4. | of or pertaining to the biological tissue of a donor: donor organ. |
donor do·nor (dō'nər)
n.
One from whom blood, tissue, or an organ is taken for use in a transfusion or transplant.
A chemical compound that can transfer an atom, a radical, or a particle to an acceptor.