organ

American  

[awr-guhn] / ˈɔr gən /

noun

1. Also called pipe organ.  a musical instrument consisting of one or more sets of pipes sounded by means of compressed air, played by means of one or more keyboards, and capable of producing a wide range of musical effects.

2. any of various similar instruments, as a reed organ or an electronic organ.

3. a barrel organ or hand organ.

4. Biology. a grouping of tissues into a distinct structure, as a heart or kidney in animals or a leaf or stamen in plants, that performs a specialized task.

5. penis

6. a newspaper, magazine, or other means of communicating information, thoughts, or opinions, especially in behalf of some organization, political group, or the like.

   Synonyms:

   channel, instrument, journal, publication

7. an instrument or means, as of action or performance.

   This committee will be the chief organ of administration.

8. Archaic. any of various musical instruments, especially wind, instruments.

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organ British  

/ ˈɔːɡən /

noun

1. 1. Also called: pipe organ.  a large complex musical keyboard instrument in which sound is produced by means of a number of pipes arranged in sets or stops, supplied with air from a bellows. The largest instruments possess three or more manuals and one pedal keyboard and have the greatest range of any instrument

   2. ( as modifier )

      organ pipe

      organ stop

      organ loft

2. any instrument, such as a harmonium, in which sound is produced in this way See also reed organ harmonica

3. short for electric organ electronic organ

4. a fully differentiated structural and functional unit, such as a kidney or a root, in an animal or plant

5. an agency or medium of communication, esp a periodical issued by a specialist group or party

6. an instrument with which something is done or accomplished

7. a euphemistic word for penis

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organ Scientific  

/ ôr′gən /

1. A distinct part of an organism that performs one or more specialized functions. Examples of organs are the eyes, ears, lungs, and heart of an animal, and the roots, stems, and leaves of a plant.

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organ Cultural  

1. Part of a living thing, distinct from the other parts, that is adapted for a specific function. Organs are made up of tissues and are grouped into systems, such as the digestive system.

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Discover More

The brain, liver, and skin are organs.

Other Word Forms

• interorgan adjective
• multiorgan adjective

Etymology

Origin of organ

before 1000; Middle English: musical instrument, pipe organ, organ of the body, tool (< Medieval Latin, Latin organum mechanical device, instrument) < Greek órganon implement, tool, bodily organ, musical instrument, akin to érgon work

Example Sentences

Transplant patients need to continue taking medication to prevent a new organ from being rejected by the body.

From BBC • Mar. 24, 2026

Long-term support for organ recipients is vital, but patients who have spoken to File on 4 Investigates say it is not always available or is poorly administered.

From BBC • Mar. 24, 2026

What in fact kills patients is the ferocious overreaction of their immune systems, which cause widespread blood clotting and organ failure.

From The Wall Street Journal • Mar. 20, 2026

The analysis revealed 17 different cell types within the aboral organ, including 11 secretory and ciliated cell types that had never been identified before.

From Science Daily • Mar. 6, 2026

“And my arms. I also had some organ damage, which is why I have to take this mountain of medicine.”

From "The Adoration of Jenna Fox" by Mary E. Pearson

Related Words

• agency
• forum
• instrument
• member
• ministry
• mouthpiece
• structure
• unit