v. t. [ imp. & p. p. Invaded; p. pr. & vb. n. Invading. ] [ L. invadere, invasum; pref. in- in + vadere to go, akin to E. wade: cf. OF. invader, F. envahir. See Wade. ] [ 1913 Webster ]
1. To go into or upon; to pass within the confines of; to enter; -- used of forcible or rude ingress. [ Obs. ] [ 1913 Webster ]
Which becomes a body, and doth then invade
The state of life, out of the grisly shade. Spenser. [ 1913 Webster ]
2. To enter with hostile intentions; to enter with a view to conquest or plunder; to make an irruption into; to attack; as, the Romans invaded Great Britain. [ 1913 Webster ]
Such an enemy
Is risen to invade us. Milton. [ 1913 Webster ]
3. To attack; to infringe; to encroach on; to violate; as, the king invaded the rights of the people. [ 1913 Webster ]
4. To grow or spread over; to affect injuriously and progressively; as, gangrene invades healthy tissue.
Syn. -- To attack; assail; encroach upon. See Attack. [ 1913 Webster ]