water divining1
/ˈwɔːtə dɪˌvʌɪnɪŋ/noun
The action or practice of searching for underground sources of water using a divining rod or similar technique.
Origin
Mid 19th century; earliest use found in Human Nature. From water + divining, probably after water diviner.
water-divining2
/ˈwɔːtədɪˌvʌɪnɪŋ/adjective
That searches for or finds underground sources of water using a divining rod or similar technique; that practises water divining.
Origin
Mid 17th century (in an earlier sense). From water + divining.