[file extension] pict (pronounced as pict) [acronym meaning] PICTure file format [definition] 
Mac graphic file format used for and for screen display in page-layout applications as an intermediary file format for transferring files between programs. The PICT format supports RGB files with a single alpha channel, and indexed-color, grayscale, and Bitmap files without alpha channels. It is not used for printed images since the format does not carry the information needed for separations.