Search Result for "disprover": 
Wordnet 3.0

NOUN (1)

1. a debater who refutes or disproves by offering contrary evidence or argument;
[syn: rebutter, disprover, refuter, confuter]


The Collaborative International Dictionary of English v.0.48:

Disprover \Dis*prov"er\, n. One who disproves or confutes. [1913 Webster]
WordNet (r) 3.0 (2006):

disprover n 1: a debater who refutes or disproves by offering contrary evidence or argument [syn: rebutter, disprover, refuter, confuter]