A disease of horses which affects the workings of the bowel and is usually fatal.
青草病（一种影响肠部功能，常会致命的马患疾病）
Example sentencesExamples
Unfortunately this mare, although she gave birth to a fine healthy foal, became ill with grass sickness and was unable to feed her foal.
Those colts and fillies will be the only offspring of the multiple Group 1 winner, who died last spring at age six after contracting grass sickness.
Tragically, Dubai Destination had only one season as a stallion at stud before fatally contracting grass sickness.
First identified in 1907 in Scotland and still the cause of 200 or more horse deaths a year in Europe, grass sickness could be caused by a fungal toxin that to date has eluded investigators.
A broken hind leg ended his racing career and he was sent to stud but tragically died of grass sickness in 2001.