Entry 1 sense Webster, 1913 Deglutition · Deg·lu·ti·tion · IPA /ˌdiɡluˈtɪʃ(ə)n/ 01 n. The act or process of swallowing food; the power of swallowing. 1. The act or process of swallowing food; the power of swallowing. “The muscles employed in the act of deglutition.” — Paley.