rebutting

re·but   (rĭ-bŭt')    v.   re·but·ted, re·but·ting, re·buts v.   tr. To refute, especially by offering opposing evidence or arguments, as in a legal case. To repel. v.   intr. To present opposing evidence or arguments. [Middle English reboten, rebutte, to rebuke, repel, from Old French rebouter : re-, re- + bouter, to push (of Germanic origin; see bhau- in Indo-European roots).]

Main Entry: re·but
Pronunciation: ri-'b&t
Function: transitive verb
Inflected Forms: re·but·ted; re·but·ting
Etymology: Anglo-French reboter rebuter to answer a charge, bar from an action, literally, to repulse, rebuff, from Old French reboter, from re- back + boter to push, butt
: to refute, counteract, or disprove (as opposing evidence) by evidence or argument <rebut damaging testimony> <rebut a presumption> —re·but·ta·ble adjective —re·but·ta·bly adverb