rhinopneumonitis
noun
rhi·no·pneu·mo·ni·tis
ˌrī-nō-ˌn(y)ü-mə-ˈnīt-əs 
: an acute febrile respiratory disease of horses that is caused by either of two herpesviruses (Varicellovirus equidalpha1 and V. equidalpha4), that is characterized especially by rhinopharyngitis and tracheobronchitis, and that sometimes causes abortion in pregnant mares
Cite this Entry
“Rhinopneumonitis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/rhinopneumonitis. Accessed 13 Nov. 2025.
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