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Definition of mitochondrion noun from the Oxford Advanced American Dictionary

 

mitochondrion

 noun
noun
NAmE//ˌmaɪt̮əˈkɑndriən//
 
(pl. mitochondria
NAmE//ˌmaɪt̮əˈkɑndriə//
 
)
(biology)
 
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a small part found in most cells, in which the energy in food is released
mitochondrial
 
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NAmE//ˌmaɪt̮əˈkɑndriəl//
 
adjective mitochondrial DNA
See the Oxford Advanced Learner's Dictionary entry: mitochondrion