DictionaryinternalWithin rather than outside
adjective

internal

in-TUR-nul/ɪnˈtɜːrnl/

Existing or happening inside something.

The clock's internal gears sit entirely within its outer casing.

A cutaway mechanical clock exposes gears entirely inside its outer casing.
Etymology

The inward sense of internus remains central: internal first described something extending toward the interior, then something situated within it.

In context

Border Security36:18
The internal body scan will reveal if the passenger is bringing back more than just silicon buttock implants inside her body.
Most Dangerous Internal Smuggling Attempts Exposed! | Border Security Compilation

More examples

  • Doctors check for internal bleeding after the accident.
  • The company conducts an internal review of its hiring practices.
  • Removing an internal wall makes the kitchen feel larger.

Forms

internally adverb — On the inside or within something.

Similar words

inner
Often emphasizes a position nearer the center or personal feelings.
inside
More informal and usually describes a physical location.