From The Collaborative International Dictionary of English v.0.48 :
Deracination \De*rac`i*na"tion\, n.
The act of pulling up by the roots; eradication. [R.] Deraign
From WordNet (r) 3.0 (2006) :
deracination
n 1: to move something from its natural environment [syn:
displacement, deracination]
2: the act of pulling up or out; uprooting; cutting off from
existence [syn: extirpation, excision, deracination]