1. the top of a water well, typically including the casing and equipment
2. the source or beginning of a stream or river
3. the surface equipment and structures at an oil or gas well
Usage: petroleum industry

Examples

• The wellhead was covered with a protective cap to prevent contamination.
• Workers installed new equipment at the wellhead to improve water flow.
• The mountain stream originated from a natural wellhead in the rocks.
• Engineers inspected the oil wellhead for any signs of leakage.
• The wellhead pressure indicated that the gas well was still productive.
• A small spring marked the wellhead of the ancient creek.
• Safety protocols require regular monitoring of the wellhead equipment.