I.e. an organism with `good' or membrane-bound nuclei in its cells

• An organism with cells characteristic of all life forms except primitive microorganisms such as bacteria

Wikipedia Word definitions in Wikipedia
A eukaryote ( or or ) is any organism whose cells contain a nucleus and other organelles enclosed within membranes . Eukaryotes belong to the taxon Eukarya or Eukaryota . The defining feature that sets eukaryotic cells apart from prokaryotic cells ( Bacteria ...

WordNet Word definitions in WordNet
n. an organism with cells characteristic of all life forms except primitive microorganisms such as bacteria; i.e. an organism with `good' or membrane-bound nuclei in its cells [syn: eucaryote ] [ant: prokaryote ]

Wiktionary Word definitions in Wiktionary
n. Any of the single-celled or multicellular organisms, of the taxonomic domain ''Eukaryota'', whose cells contain at least one distinct nucleus.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
eukaryote \eukaryote\ n. an organism with "good" or membrane-bound nuclei having multiple chromosomes; eucaryotes also have other membrane-bound organelles such as mitochondria or chloroplasts, within the cytoplasm enclosed by the outer membrane. Such cells ...