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Related to eucaryote: procaryote
an organism of the Eucaryotae, whose cells (eukaryotic cells) have a true nucleus that is bounded by a nuclear membrane, contains the chromosomes, and divides by mitosis. Eukaryotic cells also contain membrane-bound organelles, such as mitochondria, chloroplasts, lysosomes, and the Golgi apparatus. Plants and animals, protozoa, fungi, and algae (except blue-green algae) are eukaryotes. Other organisms (the bacteria) are prokaryotes.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
1. A cell containing a membrane-bound nucleus with chromosomes of DNA and proteins, generally large (10-100 mcm), with cell division involving a form of mitosis in which mitotic spindles (or some microtubule arrangement) are involved; mitochondria are present, and, in photosynthetic species, plastids are found; undulipodia (cilia or flagella) are of the complex 9+2 organization of microtubules and various proteins. Possession of an eukaryote type of cell characterizes the four kingdoms above the Monera or prokaryote level of complexity: Protoctista, Fungi, Plantae, and Animalia, combined into the superkingdom Eukaryotae.
2. Common name for members of the Eukaryotae.
[eu- + G. karyon, kernel, nut]
Farlex Partner Medical Dictionary © Farlex 2012
Variant of eukaryote.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005