1
: one that gives, donates, or presents something
2
: one used as a source of biological material (such as blood or an organ)
3
a
: 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
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
Unless your donor is a twin, their HLA markers will be different from yours.3
Before a stem cell transplant, healthcare providers check your cells' compatibility with the donor cells.
—
Suchandrima Bhowmik, Health, 2 May 2025
The proposals, which are in the early stages of discussion and are far from certain to be adopted, would amount to one of the biggest overhauls of the U.N., which has been upended by funding cuts from its biggest donor, the United States, under President Trump’s administration.
—Jamey Keaten and Farnoushi Amiri, Los Angeles Times, 2 May 2025
This event united golfers, sponsors, donors, vendors and volunteers to aid families facing financial and emotional hardships caring for a critically ill child — some of which include homelessness, hunger and depression.
—Sharon Hlapcich, Oc Register, 1 May 2025
On Tuesday of this week, two more pledges were made from local donors totaling another $1 million.
—Michael T. Nietzel, Forbes.com, 1 May 2025
See All Example Sentences for donor
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Suchandrima Bhowmik, Health, 2 May 2025
The proposals, which are in the early stages of discussion and are far from certain to be adopted, would amount to one of the biggest overhauls of the U.N., which has been upended by funding cuts from its biggest donor, the United States, under President Trump’s administration.
—Jamey Keaten and Farnoushi Amiri, Los Angeles Times, 2 May 2025
This event united golfers, sponsors, donors, vendors and volunteers to aid families facing financial and emotional hardships caring for a critically ill child — some of which include homelessness, hunger and depression.
—Sharon Hlapcich, Oc Register, 1 May 2025
On Tuesday of this week, two more pledges were made from local donors totaling another $1 million.
—Michael T. Nietzel, Forbes.com, 1 May 2025
See All Example Sentences for donor
Cite this Entry
“Donor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/donor. Accessed 17 May. 2025.
Copy CitationKids Definition
donor
noun
do·nor
ˈdō-nər 
-ˌnȯr
1
: one that donates
2
: one used as a source of bodily material or parts
a blood donor
a kidney donor
Medical Definition
Legal Definition
donor
noun
do·nor
ˈdō-nər, -ˌnȯr
: one that gives, donates, grants, or confers something
specifically
: settlor
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