noun (plural mitochondria /-rɪə/)Biology
An organelle found in large numbers in most cells, in which the biochemical processes of respiration and energy production occur. It has a double membrane, the inner part being folded inwards to form layers (cristae).
More example sentences
- Chloroplasts are cell organelles comparable to the mitochondria of animal cells.
- Inside the cytoplasm are mitochondria and endoplasmic reticulum.
- The singlet oxygen damages cell membranes, mitochondria and cell nuclei.
early 20th century: modern Latin, from Greek mitos 'thread' + khondrion (diminutive of khondros 'granule').
- More example sentences
- This precaution may extend to all mutants with defective mitochondrial morphology.
- Destructive and degradative rearrangement of mitochondrial ultrastructure under anaerobic stress.
- They localized preferentially at mitochondrial sites and perinuclear regions.
Definition of mitochondrion in:
- The US English dictionary