Gap phenomenon

What is Gap phenomenon?

Gap phenomenon definition and meaning on Dictionary terms:
noun (used with a singular verb)
Veterinary Pathology. a parasitic disease of poultry and other birds, characterized by frequent gaping due to infestation of the trachea and bronchi with gapeworms.
a fit of yawning.

 

reference: https://www.dictionary.com/browse/gap-phenomenon

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