definition of
blowup

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

[2] #2 blowup n. [effusion, gush, outburst, ebullition] an unrestrained expression of emotion. wn

[3] #3 blowup n. [enlargement, magnification] a photographic print that has been enlarged. wn