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
Frederick Dreier, Outside Online, 31 Mar. 2025
The family decided to donate Hilda's organs.
—Jonathan Vigliotti, CBS News, 30 Mar. 2025
Both simple and complex carbs are broken down by the body into glucose, which gets transported to cells, muscle and organs to provide energy.
—Daryl Austin, USA Today, 29 Mar. 2025
Paleontologists have uncovered a 444-million-year-old fossil with remarkably intact soft tissues, such as muscles, tendons, and even digestive organs.
—Mrigakshi Dixit, Interesting Engineering, 28 Mar. 2025
See All Example Sentences for organ
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Noun
Studies have suggested that the odorless gas can protect vital organs from altitude sickness, while boosting the body’s production of erythropoietin, or EPO, the hormone that stimulates the production of red blood cells.
—Frederick Dreier, Outside Online, 31 Mar. 2025
The family decided to donate Hilda's organs.
—Jonathan Vigliotti, CBS News, 30 Mar. 2025
Both simple and complex carbs are broken down by the body into glucose, which gets transported to cells, muscle and organs to provide energy.
—Daryl Austin, USA Today, 29 Mar. 2025
Paleontologists have uncovered a 444-million-year-old fossil with remarkably intact soft tissues, such as muscles, tendons, and even digestive organs.
—Mrigakshi Dixit, Interesting Engineering, 28 Mar. 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 19 Apr. 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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