Search Result for "supplanter": 
Wordnet 3.0

NOUN (1)

1. one who wrongfully or illegally seizes and holds the place of another;
[syn: usurper, supplanter]


The Collaborative International Dictionary of English v.0.48:

Supplanter \Sup*plan"ter\ (s[u^]p*pl[a^]nt"[~e]r), n. One who supplants. [1913 Webster]
WordNet (r) 3.0 (2006):

supplanter n 1: one who wrongfully or illegally seizes and holds the place of another [syn: usurper, supplanter]