Definition of "gastroduodenal" [gas•tro•du•o•de•nal]

• Of or relating to the stomach and the duodenum: gastroduodenal disease. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "They appeared to arise in the distal pyloric mucosa, or perhaps the gastroduodenal junction."
• "This may well have been because a nasty gastroduodenal ulcer, first diagnosed in 1925, led to his being put on an unusual diet—hence all the milk and fruit."
• "- Do not administer in cases of gastroduodenal ulcer and severe renal or liver failure."