Definition of wobbulation in US English:

wobbulation

(also wobulation)

noun

Electronics
  • Oscillation of a frequency between two limits, especially (in early use) produced by means of a wobbulator.

Origin

1930s; earliest use found in Radio. From wobbulat- + -ion: see -ation.

Pronunciation

wobbulation

/ˌwɒbjʊˈleɪʃn/