Origin: Latin suffix -tion
Ingestion has 2 different meanings across 1 category:
the process of taking food into the body through the mouth (as by eating)
"The doctor warned that rapid ingestion of spoiled milk could lead to severe food poisoning."
The action of ingesting, or consuming something orally, whether it be food, drink, medicine, or other substance. It is usually referred to as the first step of digestion.
"The doctor warned that accidental ingestion of cleaning products could cause severe internal damage before any treatment begins."