eruption

An eruption is an explosion of steam and lava from a volcano. This word is also used for other explosions, such as "an eruption of emotions."

If there's an eruption of a volcano, you don't want to be anywhere near it. When a volcano erupts, it spews a huge amount of lava, ash, and steam into the air. If you were angry at a friend but held your tongue for a long time, then suddenly started yelling in anger, that's an eruption too. The sudden spreading of a disease could be called an eruption. Eruptions are quick, huge, explosive, and dangerous: they're never good news.

Primary Meanings of eruption

1.
n
the sudden occurrence of a violent discharge of steam and volcanic material
2.
n
symptom consisting of a breaking out and becoming visible
3.
n
a sudden violent spontaneous occurrence (usually of some undesirable condition)
4.
n
a sudden very loud noise
Full Definitions of eruption
1

n the sudden occurrence of a violent discharge of steam and volcanic material

Synonyms:
volcanic eruption
Types:
Plinian eruption
a volcanic eruption in which a stream of gas and ash is violently ejected to a height of several miles
Type of:
discharge
the sudden giving off of energy

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

Synonyms:
eructation, extravasation
Type of:
action, activeness, activity
the state of being active
2

n symptom consisting of a breaking out and becoming visible

Types:
show 6 types...
hide 6 types...
Kaposi's varicelliform eruption, eczema vaccinatum
a now rare complication of vaccinia superimposed on atopic dermatitis with high fever and generalized vesicles and papulovesicles
enanthem, enanthema
eruption on a mucous membrane (as the inside of the mouth) occurring as a symptom of a disease
exanthem, exanthema, skin eruption
eruption on the skin occurring as a symptom of a disease
efflorescence, rash, roseola, skin rash
any red eruption of the skin
heat rash, miliaria, prickly heat
obstruction of the sweat ducts during high heat and humidity
hives, nettle rash, urticaria, urtication
an itchy skin eruption characterized by weals with pale interiors and well-defined red margins; usually the result of an allergic response to insect bites or food or drugs
Type of:
symptom
(medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease

n the emergence of a tooth as it breaks through the gum

Type of:
egress, emergence, issue
the becoming visible
3

n a sudden violent spontaneous occurrence (usually of some undesirable condition)

Synonyms:
irruption, outbreak
Types:
epidemic
a widespread outbreak of an infectious disease; many people are infected at the same time
recrudescence
a return of something after a period of abatement
pandemic
an epidemic that is geographically widespread; occurring throughout a region or even throughout the world
Type of:
happening, natural event, occurrence, occurrent
an event that happens
4

n a sudden very loud noise

Synonyms:
bam, bang, blast, clap
Types:
water hammer
the banging sound of steam in pipes
Type of:
noise
sound of any kind (especially unintelligible or dissonant sound)

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