extrusive

extrusive (comparative more extrusive, superlative most extrusive)

1. Jutting out; extruding.
2. (geology) Of rocks: forced, while in a plastic or molten state, on to the Earth's surface to lie atop existing rocks.

• effusive

• extrude, extrusion
• detrusive, intrusive, protrusive, retrusive

extrusive (plural extrusives)

1. (geology) Rock which has been formed through volcanic extrusion.

• IPA^(key): /ɛk.stʁy.ziv/

extrusive

1. feminine singular of extrusif