It's a way as in Mexico call rennet, callus, book, wipe, or belly. It is part of the stomach of the beef to prepare dishes with callus or scarred diced. In Colombia we say Mondongo.
SCARRED: In Mexico, part of the belly of the carcass, also called honeycomb.
cacarizo is the envelope name given commonly to a constructive element, when an element of concrete due to the excesses of air inside is very porous says that this very cacarizo