the sudden occurrence of a violent discharge of steam and volcanic material | anything that accompanies X and is regarded as an indication of X's existence |
a sudden very loud noise | (medicine) any sensation or change in bodily function that is experienced by a patient and is associated with a particular disease |
the emergence of a tooth as it breaks through the gum | |
a sudden violent spontaneous occurrence (usually of some undesirable condition) | |
(of volcanoes) pouring out fumes or lava (or a deposit so formed) | |
symptom consisting of a breaking out and becoming visible | |