Veterinary Pathology. a parasitic disease of poultry and other birds, characterized by frequent gaping due to infestation of the trachea and bronchi with gapeworms.
Main Entry: gapes Pronunciation: 'gAps Function: noun plural but singular in construction : a disease of birds and especially young birds in which gapewormsinvade and irritate the trachea
[geyps, gaps] 
)