organelle
noun
or·gan·elle
ˌȯr-gə-ˈnel 
: a specialized cellular part (such as a mitochondrion, chloroplast, or nucleus) that has a specific function and is considered analogous to an organ
Examples of organelle in a Sentence
Recent Examples on the Web
These organelles divide by splitting in two, as bacteria do, and cannot be formed anew if absent in daughter cells, indicating that the host cell lacks the necessary genetic instructions to produce them.
—
Encyclopedia Britannica,
18 June 2026
The presence of degraded mitochondria and lysosomes in lipofuscin supports the notion that aging begins with the breakdown of these two organelles, leading to irreversible damage in non-dividing cells such as neurons.
—
Kristel Tjandra,
Hartford Courant,
5 June 2026
Wada had begun experimenting with chloroplast motion back in the 1990s by looking into how the organelles move or anchor themselves by sprouting cytoskeletal fibers, including actin and microtubules.
—
Quanta Magazine,
4 May 2026
Converging lines of biophysical and biochemical evidence have led researchers to focus on mitochondria, the energy-producing organelles found in most cells of the body.
—
Lynne Peeples,
Scientific American,
26 Mar. 2026
See All Example Sentences for organelle
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Encyclopedia Britannica,
18 June 2026
The presence of degraded mitochondria and lysosomes in lipofuscin supports the notion that aging begins with the breakdown of these two organelles, leading to irreversible damage in non-dividing cells such as neurons.
—
Kristel Tjandra,
Hartford Courant,
5 June 2026
Wada had begun experimenting with chloroplast motion back in the 1990s by looking into how the organelles move or anchor themselves by sprouting cytoskeletal fibers, including actin and microtubules.
—
Quanta Magazine,
4 May 2026
Converging lines of biophysical and biochemical evidence have led researchers to focus on mitochondria, the energy-producing organelles found in most cells of the body.
—
Lynne Peeples,
Scientific American,
26 Mar. 2026
See All Example Sentences for organelle
Cite this Entry
“Organelle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/organelle. Accessed 7 Jul. 2026.
Copy CitationKids Definition
organelle
noun
or·gan·elle
ˌȯr-gə-ˈnel
: a structure (as a mitochondrion) in a cell that performs a special function
Medical Definition
organelle
noun
or·gan·elle
ˌȯr-gə-ˈnel
: a specialized cellular part (as a mitochondrion or nucleus) that has a specific function and is considered analogous to an organ
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