The Collaborative International Dictionary
                    Subtilization
                    
                        
                
                                                                    Subtilization \Sub`til*i*za"tion\, n. [Cf. F. subtilization.]
- The act of making subtile. 
- (Old Chem.) The operation of making so volatile as to rise in steam or vapor. 
- Refinement; subtlety; extreme attenuation. 
Wiktionary
                    subtilization
                    
                        
                
                                                                    n. 1 The act of making subtle. 2 (context chemistry obsolete English) The operation of making so volatile as to rise in steam or vapour. 3 refinement; subtlety; extreme attenuation
Usage examples of "subtilization".
This the obscure artist calls conjunction, sublimation, assation, extraction, putrefaction, ligation, desponsation, subtilization, generation, etc.