Definitions

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

  • noun A differentiated structure within a cell, such as a mitochondrion, vacuole, or chloroplast, that performs a specific function.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Biol.) a specialized part of a cell performing a specific function, usually visible under the microscope as a distinct object; it is analogous to an organ{2}, but on a microscopic scale.

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

  • noun cytology A specialized structure found inside cells that carries out a specific life process (e.g. ribosomes, vacuoles).

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

  • noun a specialized part of a cell; analogous to an organ

Etymologies

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

[New Latin organella, diminutive of Medieval Latin organum, organ of the body, from Latin, implement, tool; see organ.]

Support

Help support Wordnik (and make this page ad-free) by adopting the word organelle.

Examples

  • This organelle is called the flagellum, made of a rotary motor and a thin helical filament that grows up to about 15 micron.

    A self-assembling nanomachine with fine switching capability 2005

  • You would conjecture that some organelle is designed, say.

    ID and Origin-of-Life Research 2005

  • Let me say here only that this organelle is exquisitely sensitive to light, to gravity, to stretch, and to a stimulus which we believe to be olfactory, and illustrate it with a few slides.

    Max Delbrück - Nobel Lecture 1972

  • Carsonella might one day lose its identity altogether and become a permanent organ, or "organelle," inside the insect’s cell, the researcher speculate.

    Discovery of World’s Smallest Genome of Living Creatures | Impact Lab 2006

  • * The first artificial cell organelle may help researchers find a way to make bioengineered heparin and other synthetic drugs.

    Thor's Day yendi 2009

  • Here's a test with a science twist: which cell organelle are you?

    Humour Maxine 2009

  • Inside, the stunned viewers could see every organelle of the original amoeba, perfectly recreated.

    Delta Anomaly Rick Barba 2010

  • Inside, the stunned viewers could see every organelle of the original amoeba, perfectly recreated.

    Delta Anomaly Rick Barba 2010

  • The flagellum is IC as a motility organelle, if you remove one part, the machine doesn't work.

    A Decade Spanning Single Exchange 2008

  • Inside, the stunned viewers could see every organelle of the original amoeba, perfectly recreated.

    Delta Anomaly Rick Barba 2010

Comments

Log in or sign up to get involved in the conversation. It's quick and easy.

  • "A third theory argues that viruses were once part of a cell, an organelle, but broke away and began to evolve independently."

    —John M. Barry, The Great Influenza (NY: Penguin Books, 2004), 99

    February 11, 2009