/ ɪˈrʌpt; NAmE / verb
1.
when a volcano erupts or burning rocks, smoke, etc. erupt or are erupted , the burning rocks, etc. are thrown out from the volcano :
[ v ]
The volcano could erupt at any time.
Ash began to erupt from the crater.
[ vn ]
An immense volume of rocks and molten lava was erupted.
➡ note at explode
2.
[ v ] erupt (into sth) to start happening, suddenly and violently
SYN break out :
Violence erupted outside the embassy gates.
The unrest erupted into revolution.
3.
erupt (in / into sth) to suddenly express your feelings very strongly, especially by shouting loudly :
[ v ]
My father just erupted into fury.
When Davis scored for the third time the crowd erupted.
[also v speech ]
4.
[ v ] ( of spots, etc. ) to suddenly appear on your skin :
A rash had erupted all over his chest.
► erup·tion / ɪˈrʌpʃn; NAmE / noun [ C , U ]:
a major volcanic eruption
an eruption of violent protest
skin rashes and eruptions
••
WORD ORIGIN
mid 17th cent.: from Latin erupt- broken out, from the verb erumpere , from e- (variant of ex- ) out + rumpere burst out, break.