/yo͞oˈkarēˌōt/
Also, eucaryote
Noun , pl. eukaryotes or eucaryotes
1. An organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus. Eukaryotes include all living organisms other than the eubacteria and archaebacteria. (dictionary.com)
2. Any of the single-celled or multicellular organisms whose cell contains a distinct, membrane-bound nucleus. (biology-online.org)
3. Any of the single-celled or multicellular organisms, of the taxonomic domain Eukaryota, whose cells contain at least one distinct nucleus. (wiktionary.org)
Word origin: Greek eu- (good-, well-, true) and káry(on) (nut, kernel)