karyocyte definition
Medical Definition of Karyocyte. Karyocyte: Any cell that possesses a nucleus. A neuron (nerve cell) is a karyocyte; it has a nucleus. A mature erythrocyte (red blood cell) is not a karyocyte; it lacks a nucleus. The term karyocyte is made up of kary- from the Greek karyon meaning nut or kernel + -cyte from the Greek kytos meaning a hollow vessel = a hollow vessel (a cell) containing a nut or kernel (a nucleus).