xylometazoline
noun
xy·lo·met·a·zo·line
| \ ˌzī-lə-ˌmet-ə-ˈzō-ˌlēn
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Medical Definition of xylometazoline
: a sympathomimetic agent with vasoconstrictive activity that is used in the form of its hydrochloride C16H24N2·HCl especially as a topical nasal decongestant