Formation of hybrid cells and heterokaryons by fusion of enucleated and nucleated cells.
D000818:Animals; D002467:Cell Nucleus; D006801:Humans; D066298:In Vitro Techniques; D007822:Laryngeal Neoplasms; D008264:Macrophages / Q000166:cytology*; D051379:Mice; D010529:Peritoneal Cavity / Q000166:cytology