| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷- noun
: a method of electrical prospecting in which the electromotive forces existing in and around an ore body are measured at the surface
| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷- noun
: a method of electrical prospecting in which the electromotive forces existing in and around an ore body are measured at the surface
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012