E*rupt" (?), v. i. [See
Eruption.] 1. To eject something, esp.
lava, water, etc., as a volcano or geyser.
2. To burst forth; to break out, as ashes
from a volcano, teeth through the gums, etc.
When the amount and power of the steam is equal to the
demand, it erupts with violence through the lava flood and
gives us a small volcano.
H. J. W. Dam.E*rupt" (?), v. t. [See
Eruption.] To cause to burst forth; to eject; as, to
erupt lava. Huxley.