|an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|1.||to eject (steam, water, and volcanic material such as lava and ash) violently or (of volcanic material, etc) to be so ejected|
|2.||(intr) (of a skin blemish) to appear on the skin; break out|
|3.||(intr) (of a tooth) to emerge through the gum and become visible during the normal process of tooth development|
|4.||(intr) to burst forth suddenly and violently, as from restraint: to erupt in anger|
|[C17: from Latin ēruptus having burst forth, from ērumpere, from rumpere to burst]|
erupt e·rupt (ĭ-rŭpt')
v. e·rupt·ed, e·rupt·ing, e·rupts
To break through the gums in developing. Used of teeth.
To appear on the skin. Used of a rash or blemish.