(1) 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
WiktionaryText
Etymology
εὖ + καρυωτός (having nuts) < κάρυον (nut).
Noun
Any of the single-celled or multicellular organisms, of the taxonomic domain Eukaryota, whose cells contain at least one distinct nucleus.
