grass sickness

noun
\ ˈgras-ˌ \

Medical Definition of grass sickness 

: a frequently fatal disease of grazing horses of unknown cause that affects gastrointestinal functioning by causing difficulty in swallowing, interruption of peristalsis, and fecal impaction

called also grass disease

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Dictionary Entries near grass sickness

graphospasm

GRAS

grass

grass sickness

grass staggers

grass tetany

grating

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