The study of the effect of very high pressures on chemical reactions. ... (05 Mar 2000) ... 
Type: Term Pronunciation: pī′ĕ-zō-kem′is-trē Definitions: 1. The study of the effect of high pressures on chemical reactions.
piezochemistry 1. The study of the effect that high pressure has on chemical reactions. 2. The study of chemical reactions that occur at very high pressures; such as, under the earth's crust.