dou'ble check' Chess.
a simultaneous check by two pieces in which the moving of one piece to give check also results in discovering a check by another piece.
dou'ble-checkPronunciation: (dub'ul chek'), [key]
to check twice or again; recheck.
a second examination or verification to assure accuracy, proper functioning, or the like.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.