[radio] The waterhole, or water hole, refers to an especially quiet band of the electromagnetic spectrum between 1,420 and 1,666 megahertz, corresponding to wavelengths of 21 and 18 centimeters respectively. The term was coined by Bernard Oliver in 1971. The strongest hydroxyl radical spectral line radiates at 18 centimeters, and hydrogen a...
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http://en.wikipedia.org/wiki/Water_hole_(radio)
When a hole on the golf course features water, which is in a position that it compels the golfer to play over it for the completion of a hole, it is called a water hole.
Found on
http://www.buzzle.com/articles/golf-terminology-glossary-of-golf-terms.html
A hole with water, such as a stream or lake, that forces the players to shoot over it
Found on
http://www.encyclo.co.uk/local/21422
water bowl designed to keep ears and whiskers dry
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http://www.showdogsupersite.com/actualshow/dogsho3.html
[
n] - a natural hole or hollow containing water
Found on
http://www.webdictionary.co.uk/definition.php?query=water%20hole
noun a natural hole or hollow containing water
Found on
https://www.encyclo.co.uk/local/20974
A hole where the approach necessitates hitting the ball over a water hazard.
Found on
https://www.encyclo.co.uk/local/21644
No exact match found.
