peptic
adj
1 of, relating to, or promoting digestion
2 of, relating to, or caused by pepsin or the action of the digestive juices (C17: from Greek peptikos capable of digesting, from pepsis digestion, from peptein to digest)
peptic ulcer
n (Pathol) an ulcer of the mucous membrane lining those parts of the alimentary tract exposed to digestive juices. It can occur in the oesophagus, the stomach, the duodenum, the jejunum, or in parts of the ileum