Definition of mitochondrion
: any of various round or long cellular organelles of most eukaryotes that are found outside the nucleus, produce energy for the cell through cellular respiration, and are rich in fats, proteins, and enzymes — see cell illustration
mitochondrialplay \-drē-əl\ adjective
Recent Examples of mitochondrion from the Web
Compared to sugar, fat is burned more efficiently by the energy-producing component of the cell known as the mitochondria.
Stressed cells release ATP and other molecules made by mitochondria into the extracellular space through channels in the cell membrane.
The number of mitochondria in their cells increased, which improved the cells’ energy output.
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Origin and Etymology of mitochondrion
New Latin, from Greek mitos thread + chondrion, diminutive of chondros grain
First Known Use: 1901See Words from the same year
MITOCHONDRION Defined for Kids
Definition of mitochondrion for Students
: one of the parts found in the cytoplasm of a cell outside the nucleus that provides the cell with energy released from the breakdown of nutrients
Medical Definition of mitochondrion
: any of various round or long cellular organelles of most eukaryotes that are found outside the nucleus, produce energy for the cell through cellular respiration, and are rich in fats, proteins, and enzymes—called also chondriosome
Learn More about mitochondrion
Britannica.com: Encyclopedia article about mitochondrion
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