a single-celled organism lacking a true nucleus
Origin of prokaryote; from Classical Greek pro-, before + kary?tis: see eukaryote
Any of various microorganisms of the domains Archaea and Bacteria, characterized by the absence of a distinct membrane-bound nucleus and membrane-bound organelles and by the simultaneous occurrence of DNA transcription and protein synthesis at the same site, in contrast to eukaryotes. Also called moneran.
Origin of prokaryoteFrench procaryote : Greek pro-, before; see pro–2 + Greek karuōtos, having nuts (from karuon, nut; see karyo–).
From pro- + Ancient Greek ÎºÎ¬ÏÏ…Î¿Î½ (karuon, “nut, kernel") + -ote.