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The process by which, during the rendering of a three-dimensional scene, a pixel is replaced by one that is closer to the viewpoint, as determined by their Z coordinates.
definition
To withdraw more money from an account than there is credit; to make an overdraft
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To use a device for shooting arrows shorter than the draw of the bow.
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To exaggerate.
definition
To draw over the top of existing content.
The exception occurs if you overdraw your account.
If you have a debit card associated with a checking account, you generally are not charged any fees as long as you don't overdraw your account.
You ca n't overdraw money, so it may be good thing if you're not good with watching your finances.