Ex*plo"sion (?), n. [L. explosio a driving off by clapping: cf. F. explosion explosion. See Explode.] 1. The act of exploding; detonation; a chemical action which causes the sudden formation of a great volume of expanded gas; as, the explosion of gunpowder, of fire damp,etc.

2. A bursting with violence and loud noise, because of internal pressure; as, the explosion of a gun, a bomb, a steam boiler, etc.

3. A violent outburst of feeling, manifested by excited language, action, etc.; as, an explosion of wrath.

A formidable explosion of high-church fanaticism.

• A violent release of energy (sometimes mechanical, nuclear, or chemical.)
  
• A bursting due to pressure.
  
• The sound of an explosion.
  
• A sudden increase.
  
• A sudden outburst.
  

Spanish (Castilian)
• explosion