形容詞 extrusive:

1. of rock material; forced out while molten through cracks in the earth's surface

ex.tru.sive

adj.（形容詞）
Tending to push or thrust out.
擠出的：易于推出或擲出的
Tending to protrude or project.
伸出的：易于伸出的或突出的
Derived from magma poured out or ejected at the earth`s surface. Used of igneous rocks.
噴出的火山的：來(lái)自于噴出或噴在地表的巖漿的。用于火成巖