trichomoniasis occurring in the upper digestive tract in a variety of birds and caused by Trichomonas gallinae; it causes necrotic ulceration in the mouth, esophagus, crop, and proventriculus, frequently with rapid weight loss and death.
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trichomoniasis occurring in the upper digestive tract in a variety of birds and caused by Trichomonas gallinae; it causes necrotic ulceration in the mouth, esophagus, crop, and proventriculus, frequently with rapid weight loss and death.