definition of
[incursion]

[1] #1 incursion n. the act of entering some territory or domain (often in large numbers); "the incursion of television into the American living room". wn

[2] #2 incursion n. [penetration] an attack that penetrates into enemy territory. wn

[3] #3 incursion n. the mistake of incurring liability or blame. wn