Search Result for "discovered check":
Wordnet 3.0

NOUN (1)

1. a check on the opponent's king that is delivered by moving a piece out of the line of attack by a queen or rook or bishop; 



WordNet (r) 3.0 (2006):

discovered check
    n 1: a check on the opponent's king that is delivered by moving
         a piece out of the line of attack by a queen or rook or
         bishop