follow Dictionary.com

Stories We Like: Novels For Language Lovers

fulgurite

[fuhl-gyuh-rahyt] /ˈfʌl gyəˌraɪt/
noun
1.
a tubelike formation in sand or rock, caused by lightning.
Origin
1825-1835
1825-35; < Latin fulgur (see fulgurate) + -ite1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for fulgurite
  • Known as a fulgurite, this type of rock structure is formed when lightning strikes the ground.
British Dictionary definitions for fulgurite

fulgurite

/ˈfʌlɡjʊˌraɪt/
noun
1.
a tube of glassy mineral matter found in sand and rock, formed by the action of lightning
Word Origin
C19: from Latin fulgur lightning
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
fulgurite in Science
fulgurite
  (fl'gyə-rīt', -gə-)   
A slender, usually tubular body of glassy rock produced by lightning striking and then fusing dry sandy soil.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Encyclopedia Article for fulgurite

a glassy silica mineral (lechatelierite or amorphous SiO2) fused in the heat from a lightning strike. Fulgurite is a common mineral with two varieties. Sand fulgurites, the more common, are branching, more or less cylindrical tubes that are about one centimetre (one-half inch) to several centimetres in diameter; they are commonly less than 3 metres (10 feet) long but sometimes reach 20 m (66 ft). The central cavity is usually lined with glass, and the exterior shows adhering sand grains. The shores of Lake Michigan and the Atlantic coast are typical sites

Learn more about fulgurite with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
Cite This Source

Word of the Day

Word Value for fulgurite

13
0
Scrabble Words With Friends

Nearby words for fulgurite