Home › Words › E › exestuationexestuation/ɛɡˌzɛstjuˈeɪʃən/exestuation means A boiling up or effervescence.exestuation is pronounced /ɛɡˌzɛstjuˈeɪʃən/.EtymologyLatin exaestuatio.nounA boiling up or effervescence.e.g.“The exestuation of the Waters of the Sea” — 1695, Lucretius, translated by Thomas Creech, Of the Nature of Things:Definitions & examples from Wiktionary (CC BY-SA 3.0).