eruption e·rup·tion (ĭ-rŭp'shən)
An appearance of a rash or blemish on the skin.
Such a rash or blemish.
The emergence of a tooth through the gums.
|eruption (ĭ-rŭp'shən) Pronunciation Key
The release of gas, ash, molten materials, or hot water into the atmosphere or onto the Earth's surface from a volcano or other opening in the Earth's surface.