1. (

• volcanic_eruption ,
• eruption

) the sudden occurrence of a violent discharge of steam and volcanic material ;

2. (

• eruption ,

) symptom consisting of a breaking out and becoming visible ;

3. (

• eruption ,
• eructation ,
• extravasation

) (of volcanos) pouring out fumes or lava (or a deposit so formed) ;

4. (

• outbreak ,
• eruption ,
• irruption

) a sudden violent spontaneous occurrence (usually of some undesirable condition); "the outbreak of hostilities" ;

5. (

• bang ,
• clap ,
• eruption ,
• blast ,
• bam

) a sudden very loud noise ;

6. (

• eruption ,

) the emergence of a tooth as it breaks through the gum ;