Share this entry

Share this page

mitochondrion

Line breaks: mito|chon¦drion
Pronunciation: /ˌmʌɪtə(ʊ)ˈkɒndrɪən
 
/

Definition of mitochondrion in English:

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).
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.

Origin

early 20th century: modern Latin, from Greek mitos 'thread' + khondrion (diminutive of khondros 'granule').

Derivatives

mitochondrial

1
adjective
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:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day resilient
Pronunciation: rɪˈzɪlɪənt
adjective
able to recoil or spring back into shape…