Term: eukaryote and eukaryotic (adj)
Origin: Anc Greek ευ/eu(=good, well, easy) + κάρυον/karyon(=kernel, nut)
Literally meaning: well defined nucleus.
Coined: in 1925 by French biologist Eduard Chatton (1883 — 1947) who first used the term in his paper "Pansporella perplex: Reflections on the Biology and Phylogeny of the Protozoa" and later (1937) in his compendium, Titres et Travaux Scientifiques" .
An organism that is characterized by a well defined nucleus ( nucleated cells) which is enclosed within membrane and contains DNA.
Jan Sapp. The Prokaryote-Eukaryote Dichotomy: Meanings and Mythology . Microbiology and Molecular Biology Reviews, June 2005, p. 292-305, Vol. 69, No. 2