The phrase "stomach worm" refers to a worm-like parasite that resides in the stomach of animals or humans. It is harmful and can cause illness or discomfort. Full definition
«Excess moisture often leads to conditions for the brown stomach worm parasite, which is one of the biggest problems for sheep production.» (today.agrilife.org)
«Studies have found that schoolchildren with stomach worms perform worse on standardized tests that their parasite - free peers,» said Binning. (sciencedaily.com)
You can give your dog over-the-counter Panacur C, which is effective against stomach worms, esophageal worms, roundworms, hookworms, tapeworms, and whipworms. (1800petmeds.com)