a sudden flurry of activity (often for no obvious reason); "a burst of applause"; "a fit of housecleaning"
suddenly and violently broken open especially from internal pressure (`busted' is an informal term for `burst'); "a burst balloon"; "burst pipes"; "burst seams"; "a ruptured appendix"; "a busted balloon"
break open or apart suddenly; "The bubble burst"
break open or apart suddenly and forcefully; "The dam burst"
emerge suddenly; "The sun burst into view"
move suddenly, energetically, or violently; "He burst out of the house into the cool night"
making claim to or creating an appearance of (often undeserved) importance or distinction; "a pretentious country house"; "a pretentious fraud"; "a pretentious scholarly edition"
igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt; "volcanic rock includes the volcanic glass obsidian"
explosively unstable; "a volcanic temper"
relating to or produced by or consisting of volcanoes; "volcanic steam"; "volcanic islands such as Iceland"; "a volcanic cone is a conical mountain or hill built up of material from volcanic eruptions"