名词

1. 袭击;侵犯;侵入
    If there is an incursion into a country, enemy soldiers suddenly enter it.

2. 涌入;侵入;传入
    If someone or something enters an area where you would not expect them to be, or where they have not been found before, you can call this an incursion, especially when you disapprove of their presence.

1. the act of entering some territory or domain (often in large numbers)

    e.g. the incursion of television into the American living room

2. the mistake of incurring liability or blame

3. an attack that penetrates into enemy territory

    Synonym: penetration