extrusive
[ ik-stroo-siv, -ziv ]
Origin of extrusive
1First recorded in 1810–20; extrus(ion) + -ive
Other words from extrusive
- non·ex·tru·sive, adjective
Words Nearby extrusive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
How to use extrusive in a sentence
Deposits formed at shallow depths are related to extrusive rocks and to intrusives near the surface.
The Economic Aspect of Geology | C. K. Leith
British Dictionary definitions for extrusive
extrusive
/ (ɪkˈstruːsɪv) /
adjective
tending to extrude
(of igneous rocks) formed from magma issuing from volcanoes or cracks in the earth's crust; volcanic: Compare intrusive (def. 2)
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
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