Physicochemical refers to: Not to be confused with `Physiochemical` which refers to Physiological chemistry. ...
• (a.) Involving the principles of both physics and chemistry; dependent on, or produced by, the joint action of physical and chemical agencies.
pertaining to physics and chemistry.
(fiz″ĭ-ko-kem´ĭ-kәl) pertaining to both physics and chemistry.
Phys`i·co·chem'ic·al adjective [ Physico- + chemical .] Involving the principles of both physics and chemistry; dependent on, or produced by, the joint action of physical and chemical agencies. Huxley. 
Type: Term Pronunciation: fiz′i-kō-kem′i-kăl Definitions: 1. Relating to the field of physical chemistry.
[adj] - relating to physical chemistry
physicochemical Pertaining to the application of the theory and methodology of physics to the study of chemical systems.
adjective relating to physical chemistry