擠出的,突出的,噴出的
Extrusive \Ex*tru"sive\, a. [See {Extrude}.] (Geol.)
Forced out at the surface; as, extrusive rocks; -- contrasted
with {intrusive}.
extrusive
adj : of rock material; forced out while molten through cracks in
the earth's surface [ant: {intrusive}]