under erasure: a strategic philosophical device originally developed by Martin Heidegger; involves the crossing out of a word within a text, but allowing it to remain legible and in place; used extensively by Jacques Derrida in his philosophy of deconstruction to signify that a word is "inadequate yet necessary"
This is the device of placing words sous rature or 'under erasure', signified by crossing them through in the text and thus warning the reader not to accept them at philosophic face value