extrusive
[ ik-stroo-siv, -ziv ]
/ ɪkˈstru sɪv, -zɪv /
adjective
Origin of extrusive
First recorded in 1810–20;
extrus(ion) +
-ive
OTHER WORDS FROM extrusive
non·ex·tru·sive, adjectiveWords nearby extrusive
extrovert,
extrude,
extrusile,
extrusion,
extrusion press,
extrusive,
extubation,
exuberance,
exuberant,
exuberate,
exudate
Example sentences from the Web for extrusive
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)