1. a medicine used to treat the gastric effects of histamine in cases of peptic ulcers and gastritis and gastroesophageal reflux; works by blocking the effects of histamine on the receptor site known as H2;
WordNet (r) 3.0 (2006):
histamine blocker
n 1: a medicine used to treat the gastric effects of histamine
in cases of peptic ulcers and gastritis and
gastroesophageal reflux; works by blocking the effects of
histamine on the receptor site known as H2