Merriam-Webster Collegiate Dictionary - eukaryote

 also eucaryote  noun  Etymology: New Latin Eukaryotes, proposed subdivision of protists, from eu- + kary- + -otes, plural noun suffix, from Greek -otos — more at -otic  Date: 1943 any of a domain (Eukarya) or a higher taxonomic group (Eukaryota) above the kingdom that includes organisms composed of one or more cells containing visibly evident nuclei and organelles — compare archaea, bacterium, prokaryote  • eukaryotic adjective