donor
//ˈdoʊnər//
Noun
donorSingular
donorsPlural
1
A person who gives blood, organs, or other biological material for medical use
She became an organ donor to help save lives.
2
A person or organization that gives money or goods to a charity, cause, or institution
The museum thanked all the donors who contributed to the new exhibition.
3
In chemistry, an atom or molecule that provides electrons or other particles in a reaction
In this reaction, the nitrogen atom acts as an electron donor.