ignimbrite

(redirected from welded tuft)
Also found in: Encyclopedia.

ig·nim·brite

 (ĭg′nĭm-brīt′)
n.
A volcanic rock formed by the deposition and consolidation of ash flows and nuées ardentes.

[Latin ignis, fire + imber, imbr-, rain + -ite.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ignimbrite

(ˈɪɡnɪmˌbraɪt)
n
(Geological Science) a rock formed by the deposition at high temperature and the consolidation of a nuée ardente or other type of ash flow, being a complicated mixture of volcanic materials welded together by heat, hot gases, and pressure. Also called: welded tuft See tuft
[C20: from Latin ign(is) fire + imbr(is), imber shower of rain + -ite1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
Mentioned in ?