intrusive

形容词 intrusive:

1. tending to intrude (especially upon privacy)
2. of rock material; forced while molten into cracks between layers of other rock
3. thrusting inward

1. Intrusive viruses are hard to write and very difficult to remove without damaging the host file.
   入侵型病毒难以编写，在去除它们时常常会破坏主文件。

in.tru.sive

adj.（形容词）
Intruding or tending to intrude.
侵入的：闯入的或就要闯入的
Geology Of or relating to igneous rock that is forced while molten into cracks or between other layers of rock.
【地质学】 形成侵入岩的：属于或关于融入岩石裂缝或岩层之间时直接生成火成岩的
Linguistics Epenthetic.
【语言学】 增音的

【引伸】
intru.sively
adv.（副词）
intru.siveness
n.（名词）