Dimensional immanence
From Tardis Wiki, the free Doctor Who reference
Dimensional immanence was the term for the opposite of dimensional transcendentalism, occurring when a space was smaller on the inside than the outside. (PROSE: Cold Fusion [+]Loading...["Cold Fusion (novel)"])
The control room of the Machine was dimensionally immanent compared to its exterior due to electrokinetic theory. (PROSE: Cold Fusion [+]Loading...["Cold Fusion (novel)"])
The Celestial Omnibus was slightly smaller on the inside than the outside. (PROSE: Enter Wildthyme [+]Loading...["Enter Wildthyme (novel)"], AUDIO: Muse of Fire [+]Loading...["Muse of Fire (audio story)"])