是指質(zhì)權(quán)所擔(dān)保的主債權(quán)已屆償清期而債務(wù)人不履行債務(wù)時,質(zhì)權(quán)人依法將質(zhì)押的權(quán)利變價并就其價款優(yōu)先受償?shù)男袨椤?/p>