derrick [derricks](framework constructed over a mine or oil well) noun [UK: ˈde.rɪk] [US: ˈde.rɪk] oil rig(oil-drilling platform) noun [UK: ɔɪl rɪɡ] [US: ˌɔɪl ˈrɪɡ] rig [rigs](the special apparatus used for drilling oil wells) noun [UK: rɪɡ] [US: ˈrɪɡ] |