Definition of overeruption in US English:

overeruption

noun

Dentistry
  • Protrusion of a tooth beyond the occlusal plane.

Origin

1960s. From over- + eruption, after overerupted. Compare slightly later overerupt.

Pronunciation

overeruption

/ˌəʊv(ə)rɪˈrʌpʃn/