What is deglutition?

Some articles on deglutition:

Syncope (medicine) - Differential Diagnosis - Vasovagal - Deglutition (Swallowing) Syncope
... Syncope may occur during deglutition ... note "Deglutition syncope is characterised by loss of consciousness on swallowing it has been associated not only with ingestion of solid food, but also with carbonated and ice-cold ...