laryngotracheobronchitis

noun
la·ryn·go·tra·cheo·bron·chi·tis | \-ˌtrā-kē-ō-brän-ˈkīt-əs, -bräŋ- \
plural laryngotracheobronchitides\-ˈkit-ə-ˌdēz \

Medical Definition of laryngotracheobronchitis 

: inflammation of the larynx, trachea, and bronchi specifically : an acute severe infection of these parts marked by swelling of the tissues and excessive secretion of mucus leading to more or less complete obstruction of the respiratory passages

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