Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A spherical or elongated organelle in the cytoplasm of nearly all eukaryotic cells, containing genetic material and many enzymes important for cell metabolism, including those responsible for the conversion of food to usable energy.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun cytology A spherical or ovoid organelle found in the cytoplasm of eukaryotic cells, contains genetic material separate from that of the host; it is responsible for the conversion of food to usable energy in the form of ATP.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an organelle containing enzymes responsible for producing energy

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[New Latin : Greek mitos, warp thread + Greek khondrion, diminutive of khondros, grain, granule; see ghrendh- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek μίτος (mitos, "thread") + χονδρίον (chondrion), diminutive of χόνδρος (chondros, "grain, morsel")

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Examples

  • The mitochondrion is a tiny, membrane-enclosed "power plant" which generates the cell's supply of chemical energy (ATP).

    Microwave Technology: An End to the Human Race 2008

  • See, the mitochondrion is a tiny cellular power-plant that converts organic materials into adenosine triphosphate!'

    Archive 2006-06-01 Mac 2006

  • At the core of the process of energy creation is a tiny structure within the cell called the mitochondrion—this is the body’s energy factory.

    The Source Woodson Merrell 2008

  • At the core of the process of energy creation is a tiny structure within the cell called the mitochondrion—this is the body’s energy factory.

    The Source Woodson Merrell 2008

  • At risk of overheating the mitochondrion, may I suggest a little re think along the lines that you returned to this blog with information to correct.

    If I Can’t Have You Nobody Can « POLICE INSPECTOR BLOG Inspector Gadget 2009

  • Each mitochondrion has its own DNA and is passed down from mother to child.

    New Era of Designer Babies with Three Parents and No Hereditary Diseases | Impact Lab 2010

  • I had never been so cold before, and never so full of feeling: I was alert to every cell of my body, to every twitch, tingle, and hum of every single nucleus and mitochondrion.

    Here Comes Another Lesson Stephen O’Connor 2010

  • "The finding changes the traditional view of the mitochondrion from an" ˜energy depot 'at the service of its larger cellular host to a "˜command center' that directs cell division, "Polymenis said.

    2008 April - Telic Thoughts 2008

  • The mitochondrion as a primary site of action of steroid and thyroid hormones: Presence and action of steroid and thyroid hormone receptors in mitochondria of animal cells.

    The UltraMind Solution M.D. Mark Hyman 2009

  • The "jellyfish" looked like a bunch of mitochondrion and endoplasmic reticulum to me!

    Cue Cards, Please? 2009

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