
• A gate, or valve, by which a flow of water is permitted, prevented, or regulated.
Found on
http://thinkexist.com/dictionary/meaning/water_gate/

A channel, usually lead-lined formed between a skew and the roofing material (slate etc). Related Words: Lead; Skew, skewput; Slates
Found on
http://www.encyclo.co.uk/local/20938
Wa'ter gate` A gate, or valve, by which a flow of water is permitted, prevented, or regulated.
Found on
http://www.encyclo.co.uk/webster/W/12
No exact match found.