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noun
Cell Biology. a specialized part of a cell having some specific function; a cell organ.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Link To organelles
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Organelles
is always a great word to know.
So is ninnyhammer. Does it mean:
| a stew of meat, vegetables, potatoes, etc. |
| a fool or simpleton; ninny. |
Example Sentences
- Mitochondria are organelles within animal cells that produce energy for the cell to use.
- Mitochondria are the organelles within the body's cells that generate energy.
- Mitochondria are the organelles in the body's cells that generate energy.
American Heritage
Science Dictionary
organelle  (ôr'gə-něl') Pronunciation Key
A structure or part that is enclosed within its own membrane inside a cell and has a particular function. Organelles are found only in eukaryotic cells and are absent from the cells of prokaryotes such as bacteria. The nucleus, the mitochondrion, the chloroplast, the Golgi apparatus, the lysosome, and the endoplasmic reticulum are all examples of organelles. Some organelles, such as mitochondria and chloroplasts, have their own genome (genetic material) separate from that found in the nucleus of the cell. Such organelles are thought to have their evolutionary origin in symbiotic bacteria or other organisms that have become a permanent part of the cell. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
American Heritage
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
