Extrusive is a related term of protrusive.
As adjectives the difference between protrusive and extrusive
is that protrusive is that protrudes; protruding while extrusive is jutting out; extruding.
As a noun extrusive is
rock which has been formed through volcanic extrusion.
protrusive
English
Adjective
(
en adjective)
that protrudes; protruding
rather conspicuous; obtrusive
Derived terms
*protrusive occlusion
extrusive
English
Adjective
(
en adjective)
Jutting out]]; [[extrude, extruding.
Synonyms
* effusive
Related terms
* extrude, extrusion
* detrusive, intrusive, protrusive, retrusive
Noun
(
en noun)
(geology) Rock which has been formed through volcanic extrusion.