eukaryotes - (n.)

Living organismsócomprising protists, plants, fungi, and animals, including humansómade of large cells having a fenced-off nucleus and a cytoplasm containing cytomembranes, cytoskeletal elements, and, most often, mitochondria, peroxisomes, and, in algae and plants, chloroplasts. ~ See Also: Chloroplast, Cytomembrane system, Cytoskeleton, Mitochondrion, Nucleus, Peroxisome, Prokaryotes.