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A donor in general is a person, organization or government who donates something voluntarily. The term is usually used to represent a form of pure altruism but sometimes used when the payment for a service is recognized by all parties as representing less than the value of the donation and that the motivation is altruistic. In business law, a donor is someone who is giving the gift, and a donee the person receiving the gift. More broadly, the term is used to refer to any entity that serves as the source of something transferred to a different entity, including in scientific fields the source of matter or energy passed from one object to another. == In medical science== Often the word is used as a shorter term for: * Blood donor * Electron donor — (by analogy) a technical term in chemistry and semiconductor physics (see also the next entry) * Donor (semiconductors) * Organ donor * Sperm donor * Egg donor 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Donor」の詳細全文を読む スポンサード リンク
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