Main Entry:

do·nor

Pronunciation:

\ˈdō-nər, -ˌnȯr\

Function:

noun

Etymology:

Middle English donoure, from Anglo-French doneur, from Latin donator, from donare

Date:

15th century

1: one that gives, donates, or presents something2: one used as a source of biological material (as blood or an organ)3 a: a compound capable of giving up a part (as an atom, chemical group, or subatomic particle) for combination with an acceptor b: an impurity added to a semiconductor to increase the number of mobile electrons