[ 'dəʊnə , -nɔ: ]
■ noun
1》 a person who donates something.
2》 Chemistry an atom or molecule that provides a pair of electrons in forming a coordinate bond.
3》 Physics an impurity atom in a semiconductor which contributes conducting electrons to the material.
Origin
ME: from OFr. doneur , from L. donator , from donare 'give'.