Aliasing

Occurs in computer generated images or text when the resolution is not high enough to display a clean line or curve. This results in “jaggies” or additional pixels along the edge of the image which give a blurred or step-like appearance. This can also result in Moiré patterns.

Antialiasing

The method of correcting or preventing jagged edges in computer generated text and/or images. (See aliasing). Many graphics computer programs offer features to minimize this effect created when a resolution is not high enough for the image/text to display cleanly.

Aqueous Coating

Coating in a water base and applied like ink by a printing press to protect and enhance the printing underneath.

Author's Alterations

Also know as "AA's". Changes and additions in copy after it has been typeset.