Pinatubo pi·na·tubo US/pɪnʌˈtuboʊ/ uncommon noun 1. a volcano on Luzon northwest of Manila; erupted in 1991 after 600 years of dormancy SynonymsMount Pinatubo Related words Broader terms volcano WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.
