Pronunciation: (kwon'tīz),[key] —v.t.,-tized, -tiz•ing. 1. Math.,Physics.to restrict (a variable quantity) to discrete values rather than to a continuous set of values.
2. Physics.to change the description of (a physical system) from classical to quantum-mechanical, usually resulting in discrete values for observable quantities, as energy or angular momentum. Also,esp. Brit.,quan'tise.