Added 9 October 2026 oilfield noun Categories: PlacesRare Words noun ! Definition from WordNet 3.1, Princeton University. More about oilfield at Wordnik → Where our words come from → A region rich in petroleum deposits (especially one with producing oil wells). Related Words: oilpetroleumfieldoilwellpetrochemsubseadrillerdeepwateroffshorehydrocarbonpetrochemicalpetrophysics Back to today's word