do·​nor | \ˈdō-nər, -ˌnȯr\

Definition of donor 

1 : one that gives, donates, or presents something

2 : one used as a source of biological material (such as blood or an organ)

3a : a compound capable of giving up a part (such 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

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Examples of donor in a Sentence

The money was raised from individual donors. She is one of the charity's major donors.

Recent Examples on the Web

Through the generosity of donors, SYSO is able to keep tuition at affordable rates, ranging from $280-$420 for the entire season. Staff Report, Daily Southtown, "Community news: Lincoln-Way cadets take 3rd at national academic bowl," 12 July 2018 So, the president's lawyer, Rudy Giuliani, blasting the Special Counsel Robert Mueller and his merry band of Democratic donors. Fox News, "Senate fight awaits Trump's Supreme Court pick," 10 July 2018 Other groups are trying transplants of the pancreatic cells that produce insulin, but only a small number of patients can get this treatment because of a shortage of donors. NBC News, "Cheap blood pressure drug might slow diabetes," 9 July 2018 The funds will be administered by the California Community Foundation, which is one of the donors, and the group Southern California Grantmakers. Howard Blume,, "Outside funders give L.A. Unified under new Supt. Beutner a $3 million vote of confidence," 9 July 2018 The suit was filed on behalf of DNC donors Eric Schoenberg and Roy Cockrum and former DNC staffer Scott Comer. John Bacon, USA TODAY, "Lawsuit linking Trump to leak of Democratic emails tossed out on procedural grounds," 4 July 2018 To combat that, the Democratic Governors Association is building a network of donors and post-primary game plan to quickly get on the air after the primary. Patrick Marley, Milwaukee Journal Sentinel, "Scott Walker spends heavily on TV as Democrats scramble to raise cash," 29 June 2018 Meanwhile, the non-partisan Economic Policy Institute published a paper in February linking a string of court cases challenging unions to a hub of wealthy conservative donors, including Uihlein and the Koch brothers. Alana Abramson, Time, "The Supreme Court's Union Fees Decision Could Be a Huge Blow for Democrats," 29 June 2018 Tickets to the Traverse City Film Festival go on sale July 21 to the public and July 15 to Friends of the Film Festival donors. Detroit Free Press, "Traverse City Film Festival lineup will tackle controversies of 2018 America," 29 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'donor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of donor

15th century, in the meaning defined at sense 1

History and Etymology for donor

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

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Statistics for donor

Last Updated

10 Nov 2018

Look-up Popularity

Time Traveler for donor

The first known use of donor was in the 15th century

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More Definitions for donor



English Language Learners Definition of donor

: a person or group that gives something (such as money, food, or clothes) in order to help a person or organization

: a person who gives something (such as blood or a body organ) so that it can be given to someone who needs it


do·​nor | \ˈdō-nər \

Kids Definition of donor

: a person who donates


do·​nor | \ˈdō-nər, -ˌnȯ(ə)r \

Medical Definition of donor 

1 : one used as a source of biological material (as blood or an organ)

2 : a compound capable of giving up a part (as an atom, chemical group, or elementary particle) for combination with an acceptor

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do·​nor | \ˈdō-nər, -ˌnȯr \

Legal Definition of donor 

: one that gives, donates, grants, or confers something specifically : settlor

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Comments on donor

What made you want to look up donor? Please tell us where you read or heard it (including the quote, if possible).


to express warning or disapproval

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