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| well·head [ wél hèd ] (plural well·heads) |
noun |
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1. source of spring or stream: the place where a spring emerges from the earth or a stream begins
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2. source of something: a principal or primary source of something
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3. structure on top of well: a structure or enclosure at the upper end of a water, oil, or natural-gas well, e.g. one containing pipes and pumping equipment
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