ingestion

Short definition from Wiktionary

Noun

1. 1
   The process 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.
2. 2
   The process of ingesting something into a jet engine or an instance.
3. 3
   Any intake of a substance into an organism.
4. 4
   Intake of data into a computer system.