Meaning of Mohorovičić discontinuity

Mo•ho•ro'vi•čić discontinu'ity

Pronunciation: (mō"hô-rō'vu-chich, -hō-), [key]
— Geol. Geol.
  1. the discontinuity between the crust and the mantle of the earth, occurring at depths that average about 22 mi. (35 km) beneath the continents and about 6 mi. (10 km) beneath the ocean floor.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.