Akademik

dowse
1.
v.intr. search for underground water or minerals by holding a Y-shaped stick or rod which dips abruptly when over the right spot.
Phrases and idioms:
dowsing-rod such a stick or rod.
Derivatives:
dowser n.
Etymology: 17th c.: orig. unkn.
2.
var. of DOUSE.

Useful english dictionary. 2012.