1
a
: a differentiated structure (such as a heart, kidney, leaf, or stem) consisting of cells and tissues and performing some specific function in an organism
b
: bodily parts performing a function or cooperating in an activity
the eyes and related structures that make up the visual organs
2
a(1)
: a keyboard instrument in which sets of pipes are sounded by compressed air and produce a variety of timbres
called also pipe organ
(2)
: an electronic keyboard instrument that approximates the sounds and resources of the pipe organ
(3)
(4)
: any of various similar cruder instruments
b
3
: a subordinate group or organization that performs specialized functions
the various organs of government
4
variants
or organo-
1
: organ
organogenesis
2
: organic
organomercurial
Examples of organ in a Sentence
Noun
the legislative organ of our government
that newspaper is intended as an organ for the whole university community
Recent Examples on the Web
Diana Leyva, Nashville Tennessean, 24 Oct. 2025
Endometriosis Endometriosis is a condition in which uterine-like tissue grows outside of the uterus on other nearby organs.
—Wendy Wisner, Health, 24 Oct. 2025
The blood test analyzes 460 different biomarkers across 19 organs and systems, then provides a detailed breakdown of how quickly each part of your body is aging.
—Allie Garfinkle, Fortune, 23 Oct. 2025
Many of us would give up a minor organ to look as amazing as Gisele Bündchen.
—Madeleine Marr, Miami Herald, 23 Oct. 2025
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Noun
According to the National Institute of Neurological Disorders and Stroke, CMT causes a range of sensory and motor symptoms, including numbness, tingling, pain, muscle weakness and atrophy — deterioration in cells, tissues, and organs.
—Diana Leyva, Nashville Tennessean, 24 Oct. 2025
Endometriosis Endometriosis is a condition in which uterine-like tissue grows outside of the uterus on other nearby organs.
—Wendy Wisner, Health, 24 Oct. 2025
The blood test analyzes 460 different biomarkers across 19 organs and systems, then provides a detailed breakdown of how quickly each part of your body is aging.
—Allie Garfinkle, Fortune, 23 Oct. 2025
Many of us would give up a minor organ to look as amazing as Gisele Bündchen.
—Madeleine Marr, Miami Herald, 23 Oct. 2025
See All Example Sentences for organ
Cite this Entry
“Organ.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/organ. Accessed 3 Nov. 2025.
Copy CitationKids Definition
organ
noun
or·gan
ˈȯr-gən 
1
a
: a keyboard musical instrument in which sets of pipes are sounded by compressed air
b
: an electronic keyboard musical instrument by which sounds like those of an organ are made
2
: a part (as a kidney or leaf) of a person, plant, or animal that consists of cells and tissues and is specialized to do a particular task compare system sense 1b
3
: a way of getting something done
courts are organs of government
4
: a publication (as a newspaper or magazine) of a special group
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