Chad (paper) device which will not punch a complete circle in the tape but, instead, will only cut approximately three-quarters of the circumference of a circle ... thereby leaving a movable, or hinged, lid of paper in the tape." In the "New Hacker's Dictionary", two unattributed and likely humorous derivations for "chad" are offered, a back-formation from a personal name "Chadless" and an acronym for "Card Hole Aggregate Debris". Other etymologies claim derivation from the Scottish name for river gravel, "chad", or the British slang for louse, "chat". When a chad is not fully detached, it is described by various terms corresponding
Food waste that is lost during any of the four stages of the food supply chain: (1) producers, (2) processors, (3) retailers, and (4) consumers. Precise definitions are contentious, often defined on a situational basis (as is the case more generally with definitions of waste). Professional bodies, including international organizations, state governments and secretariats may use their own definitions. Definitions of food waste vary, among other things, in what food waste consists of, how it is produced, and where or what it is discarded from or generated by. Definitions also vary because certain groups do not consider (or have traditionally not considered)