simethicone

[ sahy-meth-i-kohn ]

noun

, Pharmacology.

1. an active ingredient in many antacid preparations that causes small mucus-entrapped air bubbles in the intestines to coalesce into larger bubbles that are more easily passed.

Word History and Origins

Origin of simethicone¹

si(lica) + meth(yl) + (sil)icone