depressurize Syllabification: (de·pres·sur·ize)Pronunciation: /dēˈpreSHəˌrīz/Translate depressurize | into Italian Definition of depressurize verb [with object] release the pressure of the gas inside (a pressurized vehicle or container). [no object] (of a pressurized vehicle or container) lose pressure. Derivatives depressurizationPronunciation: /-ˌpreSHərəˈzāSHən/ noun depressurize in other Oxford dictionaries Definition of depressurize in the British & World English dictionary