an erosion of the mucous membrane of the lower esophagus, stomach, or duodenum, caused in part by the corrosive action of the gastric juice.
(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
peptic ulcer n.
An ulcer of the upper digestive tract, usually in the stomach or duodenum, where the mucous membrane is exposed to gastric secretions.
[pep-ti-deys, -deyz] /ˈpɛp tɪˌdeɪs, -ˌdeɪz/ noun, Biochemistry. 1. any of the class of enzymes that catalyze the hydrolysis of or peptones to amino acids. /ˈpɛptɪˌdeɪs; -ˌdeɪz/ noun 1. any of a group of proteolytic enzymes that hydrolyse peptides to amino acids peptidase pep·ti·dase (pěp’tĭ-dās’, -dāz’) n. An enzyme that catalyzes the hydrolysis of peptides into […]
[pep-tahyd] /ˈpɛp taɪd/ noun, Biochemistry. 1. a compound containing two or more amino acids in which the carboxyl group of one acid is linked to the amino group of the other. /ˈpɛptaɪd/ noun 1. any of a group of compounds consisting of two or more amino acids linked by chemical bonding between their respective carboxyl […]
noun, Biochemistry. 1. a covalent bond formed by joining the carboxyl group of one amino acid to the amino group of another, with the removal of a molecule of water. noun 1. (biochem) a chemical amide linkage, –NH–CO–, formed by the condensation of the amino group of one amino acid with the carboxyl group of […]
peptidergic pep·ti·der·gic (pěp’tĭ-dûr’jĭk) adj. Of or being nerve cells or fibers that may use small peptide molecules as their neurotransmitters.