To cause to burst forth; to eject; as, to erupt lava.
To eject something, esp. lava, water, etc., as a volcano or geyser; as, when Mount Saint Helens erupted, some people were taken by surprise.
To burst forth; to break out, as ashes from a volcano, teeth through the gums, etc.; as, the third molar erupts late in most people, and in some persons does not occur at all.
erupt or intensify suddenly; "Unrest erupted in the country"; "Tempers flared at the meeting"; "The crowd irrupted into a burst of patriotism"
start to burn or burst into flames; "Marsh gases ignited suddenly"; "The oily rags combusted spontaneously"
become active and spew forth lava and rocks; "Vesuvius erupts once in a while"
force out or release suddenly and often violently something pent up; "break into tears"; "erupt in anger"
to break out suddenly ,with force
to eject material at the earth's surface, as a volcano or geyser. [AHDOS