insertion
1. [ noun ] a message (spoken or written) that is introduced or inserted
Synonyms: interpolation
Examples:

"with the help of his friend's interpolations his story was eventually told" "with many insertions in the margins"

Related terms: message interpolate
2. [ noun ] the act of putting one thing into another
Synonyms: intromission introduction
Related terms: movement injection enclosure instillation transfusion perfusion cannulation insert admit insert tuck
Similar spelling:   insert
  incertain
  in_short
  Ingerson
  in_series
  Ingwersen
  in_service
  incertitude