1. The overground drive for a reciprocating piston pump installed at a borehole (e.g. an oil well)
   - nodding donkey

Encyclopedia: Pump jack

• contortion
• contortionist
• contour
• contour feather
• contour language
• contour line
• contour map
• contour sheet
• contra danse
• contra-
• contraband
• contrabandist
• contrabass
• contrabassoon
• contraception
• contraceptive
• contraceptive device
• contraceptive diaphragm
• contraceptive method
• contraceptive pill
• contraclockwise
• contract
• contract bridge
• contract in
• contract killing