intromission

/ˌɪntrəˈmɪʃən/
noun
  1. The act of putting or sending something into a place or thing.
    • The intromission of fresh air into the room was done by opening the windows.
    • The scientist studied the intromission of nutrients into the plant's cells.
    • The intromission of data into the system must be done carefully to avoid errors.