tiotropium

== English == === Etymology === From thio- (“containing sulfur”) +‎ -trop- (“atropine derivative”) +‎ -ium (“quaternary ammonium compound”). === Pronunciation === (General American) IPA(key): /ˌtaɪ.oʊˈtɹoʊ.pi.əm/ === Noun === tiotropium (uncountable) (pharmacology) An anticholinergic drug administered by oral inhalation in the form of its bromide C19H22NO4S2Br·H2O as a bronchodilator in the treatment of chronic obstructive pulmonary disease. ==== Derived terms ==== tiotropium bromide === References === “tiotropium”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.