zero
vt. 1. To set to 0. Usually said of small pieces of data,
such as bits or words (esp. in the construction `zero out'). 2. To
erase; to discard all data from. Said of disks and directories,
where `zeroing' need not involve actually writing zeroes throughout
the area being zeroed. One may speak of something being
`logically zeroed' rather than being `physically zeroed'. See
scribble.