Eucaryotic

Part of speech: adjective

Definitions

1. A type of organism characterized by cells that have a nucleus enclosed within membranes, differentiating them from prokaryotes
2. Referring to living entities whose cellular structure includes membrane-bound organelles, including a distinct nucleus
3. Describing life forms that possess complex cellular organization with a true nucleus and various organelles within their cells

Etymology: "Eucaryotic" is an adjective built from "eucaryote" plus the suffix "-ic". The "-ic" ending has a long pedigree: it passed from Latin "-icus" through Old French "-ique" into Middle English as "-ik", and was later spelled "-ic" in English. Its ancestry reaches back to Proto-Indo-European, where it likely signalled a connection or belonging, which is why it so readily attaches to a noun to mean "pertaining to" that noun. The noun it modifies, "eucaryote", is the more recent coinage. Its prefix "eu-" comes from Greek "eu", meaning "well" or "true", and the second element is a Greek-derived "karyon", meaning "nut" or "kernel", used in biology for the cell nucleus. Together they describe a cell with a well-formed, distinct nucleus, set against "procaryote" (from Greek "pro", "before"), a cell lacking one. Both are scientific formations from classical roots, not terms the ancient Greeks themselves used.

Synonyms: eukaryotic

Antonyms: prokaryotic