Simple Definition of borehole
; especially : a hole dug into the earth in order to find water or oil
Full Definition of borehole
: a hole bored or drilled in the earth: as a : an exploratory well b chiefly British : a small-diameter well drilled especially to obtain water
First Known Use of borehole
Seen and Heard
What made you want to look up borehole? Please tell us where you read or heard it (including the quote, if possible).