gravis

adjective
gra·​vis | \ ˈgra-vəs How to pronounce gravis (audio) , ˈgrä- How to pronounce gravis (audio) , ˈgrā- How to pronounce gravis (audio) \

Medical Definition of gravis

: tending to be more virulent than average used especially of strains of diphtheria bacilli — see icterus gravis, icterus gravis neonatorum, myasthenia gravis — compare intermedius, mitis

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“Gravis.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/gravis. Accessed 24 Jan. 2021.

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