What has been described a motor vehicle for one statutory purpose may not suit the purpose of another. In its customary meaning, a motor vehicle has the essential characteristics of a self-propelled contrivance designed for the carriage of persons or things. By definition, railway devices have been excluded.
Process in which one parent cell divides to form two single cells? That process is called Mitosis in regular cells and Meiosis in sex cells or asexual reproduction. Edit
Mitosis is the cycle that eukaryotic cells go through in order to divide. During mitosis, a cell duplicates its DNA and divides into two genetically identical cells. Mitosis is typically followed by cytokinesis, which divides the other properties of the cell including cytoplasm, organelles and the cell membrane. Karyokinesis also occurs, which divides the nucleus.