| Subject | English | Japanese |
| gen. | polymorphic cell | 多形細胞 |
| comp., MS | polymorphic code | ポリモーフィック コード (Malicious code that changes its code structure or method of infection to evade detection by virus scanners) |
| gen. | polymorphic layer | 多形層 |
| gen. | polymorphic layer | 多形細胞層 |
| phys. | polymorphic transformation | 多係変態 (たけい・へんたい) |
| phys. | polymorphic transition | 多形転移 (たけい・てん'い) |