wellhead

well·head  (wlhd)

n.

1. The source of a well or stream.

2. A principal source; a fountainhead.

3. The structure built over a well.

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wellhead

Noun

1. the source of a well or stream

2. a source, fountainhead, or origin

Thesaurus

Noun	1.	wellhead - the source of water for a well wellspring origin, source, root, rootage, beginning - the place where something begins, where it springs into being; "the Italian beginning of the Renaissance"; "Jupiter was the origin of the radiation"; "Pittsburgh is the source of the Ohio River"; "communism's Russian root"
	2.	wellhead - a structure built over a well structure, construction - a thing constructed; a complex entity constructed of many parts; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons"