Hypertext Webster Gateway: "invader"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Invader \In*vad"er\, n.
One who invades; an assailant; an encroacher; an intruder.
From WordNet (r) 1.7 (wn)
invader
n : someone who enters by force in order to conquer [syn: {encroacher}]
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