Tripice

Tripe is a type of edible lining from the stomachs of various farm animals. Most tripe is from cattle, pigs and sheep. Beef tripe is made from the muscle wall of a cow's stomach chambers: the rumen (blanket/flat/smooth tripe), the reticulum (honeycomb and pocket tripe), and the omasum (book/bible/leaf tripe). Abomasum (reed) tripe is seen less frequently, owing to its glandular tissue content. Tripe refers to cow (beef) stomach, but includes stomach of any ruminant including cattle, sheep, deer, antelope, goat, ox, giraffes, and their relatives. Tripas, the related Spanish word, refers to culinary dishes produced from the small intestines of an animal. In some cases, other names have been applied to the tripe of other animals. For example, tripe from pigs may be referred to as paunch, pig bag, or hog maw.

Source: Wikipedia