As a noun xenolith
is (geology) any piece of rock having a different origin to that of the igneous rock in which it is found.
As an adjective xenolithic is
being or pertaining to a xenolith.
xenolith
Noun
(
en noun)
(geology) any piece of rock having a different origin to that of the igneous rock in which it is found
xenolithic
English
Adjective
(-)
Being or pertaining to a xenolith.