Definition of overdispersal in English:

overdispersal

noun

  • Dispersal to a greater degree than usual, expected, or desirable; greater sparseness, separateness, or regularity of distribution than would be predicted to arise randomly.

Origin

1950s; earliest use found in Journal of Animal Ecology. From over- + dispersal.

Pronunciation

overdispersal

/ˌəʊvədɪˈspəːsl/