Meaning of hydrofracturing

hy•dro•frac•tur•ing

Pronunciation: (hī"dru-frak'chu-ring), [key]
— n.
  1. a method of increasing the permeability of rocks penetrated by an oil or gas well by pumping in water and sand under pressure to open up cracks in the rocks.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.