oxymetazoline
noun
oxy·me·taz·o·line
| \ ˌäk-si-mə-ˈtaz-ə-ˌlēn
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Medical Definition of oxymetazoline
: a sympathomimetic drug with vasoconstrictive activity that is used in the form of its hydrochloride C16H24N2O·HCl chiefly as a topical nasal decongestant