Noun
A divining rod used in searching for water, ore, etc., a dowsing rod.
One who uses the dowser or divining rod.
Source: Webster's dictionaryDecem praecepta Wittenbergensi populo praedicta, Martin Luther The 1550 edition of Sebastian Münster 's Cosmographia contains a woodcut of a dowser with forked rod in hand walking over a cutaway image of a mining operation. Source: Internet
The dowser then walks slowly over the places where he suspects the target (for example, minerals or water) may be, and the dowsing rod dips, inclines or twitches when a discovery is made. Source: Internet
On the upper floor each dowser was asked to determine the position of the pipe. Source: Internet