definition of
explosion

[1] #1 explosion n. [detonation, blowup] a violent release of energy caused by a chemical or nuclear reaction. wn

[2] #2 explosion n. [burst] the act of exploding or bursting; "the explosion of the firecrackers awoke the children"; "the burst of an atom bomb creates enormous radiation aloft". wn

[3] #3 explosion n. a sudden great increase; "the population explosion"; "the information explosion". wn

[4] #4 explosion n. the noise caused by an explosion; "the explosion was heard a mile away". wn

[5] #5 explosion n. [plosion] the terminal forced release of pressure built up during the occlusive phase of a stop consonant. wn