1. The division of the cytoplasm and the plasma membrane following the division of the nucleus resulting into two cells, each having its own nucleus and cytoplasm surrounded by a plasma membrane. (biology-online.org)
2. The process in which the cytoplasm of a single eukaryotic cell is divided to form two daughter cells. It usually initiates during the late stages of mitosis, and sometimes meiosis, splitting a bi-nucleate cell in two, to ensure that chromosome number is maintained from one generation to the next. (Wikipedia.com)
The process in which the cytoplasm of a cell divides following the division of the nucleus. (Wiktionary.com)
Word origin: From the greek cyto- (cell) and -kinesis (motion, movement).