Definition of "frac"

frac¹

verb
third-person singular simple present fracs, present participle fraccing, simple past and past participle fracced
1. (oil industry) To use hydraulic fracturing (fraccing)
  Quotations
  To date, Arrow has only fracced about 2.5 percent of its wells ...
  2011, Arrow, “Fraccing”, in Arrow Energy‎ (html), archived from the original on 22 January 2012
adjective
1. (oil industry) Relating to or denoting hydraulic fracturing
  Quotations
  More than a million wells have been fracced in the United States since the first frac job six decades ago.
  2012 January 3, Ralph Benko, “Daniel Yergin's The Quest”, in Forbes‎
  The drilling industry has generally spelled the word without a "K," using terms like "frac job" or "frac fluid."
  2012 January 26, Jonathan Fahey, “No energy industry backing for the word 'fracking'”, in Yahoo News‎

frac²

noun
plural fracs
1. (oil industry) Frac job.
  Quotations
  A program summary showing the type and volume of fluid and the size and amount of sand that is planned for the eight fracs is shown in table 1.
  1976, United States. Energy Research and Development Administration, Bartlesville Energy Technology Center, United States. Dept. of Energy. Division of Oil, Gas, and Shale Technology, United States. Division of Oil, Gas, Shale, and In Situ Technology, United States. Dept. of Energy. Division of Fossil Fuel Extraction, “NATURAL BUTTES UNIT, UINTAH COUNTY, UTAH, MASSIVE HYDRAULIC FRACTURING DEMONSTRATION”, in Contracts for cooperative and supporting research on enhanced oil and gas recovery and improved drilling methods‎, volumes 7-10

frac³

noun
plural fracs
1. Fracture.
2. Fracturing.

frac⁴

noun
plural fracs
1. Fraction
2. Fractioning