What was the "Plan 9 from Outer Space" Interocitor?

The Interocitor first appeared in "This Island Earth", a wonderful "pulp"
film. It was later used in a "Coneheads" TV special, which Britishers would
likely not be familiar with.

"Plan 9" had a language-translation device, the "robo-dictatoor" [sic]. None
of the actors pronounces it the same way.