eukaryote

or eu·car·y·ote

[ yoo-kar-ee-oht, -ee-uh t ]
/ yuˈkær iˌoʊt, -i ət /

noun Biology.

any organism having as its fundamental structural unit a cell type that contains specialized organelles in the cytoplasm, a membrane-bound nucleus enclosing genetic material organized into chromosomes, and an elaborate system of division by mitosis or meiosis, characteristic of all life forms except bacteria, blue-green algae, and other primitive microorganisms.
Compare prokaryote.

Origin of eukaryote

< New Latin Eukaryota, earlier Eucaryotes (1925) “those having a true nucleus,” equivalent to eu- eu- + Greek káry(on) nut, kernel (see karyo-) + New Latin -ota, -otes; see -ote

OTHER WORDS FROM eukaryote

eu·kar·y·ot·ic [yoo-kar-ee-ot-ik] /yuˌkær iˈɒt ɪk/, adjective

Words nearby eukaryote

euhedral, euhemerism, euhemerize, euhemerus, eukaryotae, eukaryote, eukinetics, eula, eulachon, eulenburg's disease, eulenspiegel

British Dictionary definitions for eukaryote

eukaryote

eucaryote

/ (juːˈkærɪˌɒt) /

noun

any member of the Eukarya, a domain of organisms having cells each with a distinct nucleus within which the genetic material is contained. Eukaryotes include protoctists, fungi, plants, and animals Compare prokaryote

Derived forms of eukaryote

eukaryotic or eucaryotic (ˌjuːkærɪˈɒtɪk), adjective

Word Origin for eukaryote

from eu- + karyo- + -ote as in zygote

Medical definitions for eukaryote

eukaryote

n.

A single-celled or multicellular organism whose cells contain a distinct membrane-bound nucleus.

Other words from eukaryote

eu•kar′y•ot′ic (-ŏt′ĭk) adj.

Scientific definitions for eukaryote

eukaryote
[ yōō-kăr′ē-ōt ]

An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins (histones) into chromosomes. The cells of eukaryotes also contain an endoplasmic reticulum and numerous specialized organelles not present in prokaryotes, especially mitochondria, Golgi bodies, and lysosomes. The organelles are enclosed in a three-part membrane (called a unit membrane) consisting of a lipid layer sandwiched between two protein layers. All organisms except for bacteria and archaea are eukaryotes. Compare prokaryote.

Other words from eukaryote

eukaryotic adjective

Cultural definitions for eukaryote

eukaryote
[ (yooh-kar-ee-oht) ]

An organism whose cells contain a nucleus. All multicelled organisms are eukaryotes, as is one superkingdom of single-celled organisms. Eukaryotes also have organelles enclosed by membranes. (Compare prokaryote.)

notes for eukaryote

Eukaryotes evolved in a process in which one early prokaryote consumed another, forming a more complex structure.

notes for eukaryote

The word eukaryote comes from the Greek for “true nucleus.”