Volcano Definition–noun, plural -noes, -nos. | 1. | a vent in the earth's crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. |
| 2. | a mountain or hill, usually having a cuplike crater at the summit, formed around such a vent from the ash and lava expelled through it. |
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From Dictionary
Related topics from Britannicavolcano
vent in the crust of the Earth or other planet or satellite, from which issue eruptions of molten rock, hot rock fragments, and hot gases. A volcanic eruption is an awesome display of the Earth's ...
Santa Ana Volcano
, mountain peak in southwestern El Salvador. The highest peak in the country, it rises to 7,749 feet (2,362 metres). The volcano has been active since the 16th century and last erupted in 2005, its ...
Pico de Orizaba, Volcano
volcano on the border of Veracruz and Puebla states, south-central Mexico. Its name comes from the Nahuatl for "Star Mountain." It rises on the southern edge of the Mexican Plateau, 60 miles (100 km) ...
Izalco Volcano
volcano in western El Salvador on the southern slope of Santa Ana. It is the most active volcano in Central America, having erupted more than 50 times since 1770. Its black symmetrical cone, which ...
Misti Volcano
volcano of the Andes mountains of southern Peru. It is flanked by Chachani and Pichupichu volcanoes and rises to 19,098 feet (5,821 m) above sea level, towering over the city of Arequipa. Its ...
Mayon Volcano
active volcano, southeastern Luzon, Philippines, dominating the city of Legaspi. Called the world's most perfect cone, it has a base 80 miles (130 km) in circumference and rises to 8,077 feet (2,462 ...
Tajumulco Volcano
mountain peak in southwestern Guatemala. The highest peak in Central America, Tajumulco rises essentially from sea level to an elevation of 13,845 feet (4,220 metres). The peak is part of the Sierra ...
Klyuchevskaya Volcano
active volcano of the Kamchatka Peninsula, far eastern Russia. It is one of the highest active volcanoes in the world, rising to a height of 15,584 feet (4,750 m), the highest point on the peninsula. ...
Concepcion Volcano
one of two volcanic cones (the other is Madera) forming Ometepe Island in Lake Nicaragua, southwestern Nicaragua. Also known as Ometepe, it rises to 5,282 ft (1,610 m) and comprises the northern half ...
Pavlof Volcano
volcanic peak of the Aleutian Range, southwestern Alaska, U.S. Situated about 580 miles (930 km) southwest of Anchorage, on the west side of Pavlof Bay, it lies near the southwestern tip of the ...
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