borehole

noun

bore·​hole ˈbȯr-ˌhōl 

: a hole bored or drilled in the earth: such as

a

: an exploratory well

b

chiefly British : a small-diameter well drilled especially to obtain water

Examples of borehole in a Sentence

Recent Examples on the Web

These systems are not new; lots of buildings use this borehole technology, notably in Europe and Canada, though some use it just to drain heat into the ground without actively trying to pull it back later on. — Christopher Bonanos, Curbed, 13 Aug. 2026

After half a mile, extremely salty radioactive water started flowing out of the borehole. — James Dinneen, New Yorker, 13 Aug. 2026

Unlike conventional nuclear plants, Deep Fission’s design places a pressurized water reactor about one mile below the surface inside a deep borehole. — Aamir Khollam, Interesting Engineering, 6 Aug. 2026

The flushing of a borehole doesn’t land well in a gala slideshow, but installing a new water system in a new community sure does. — Sarah Evans, Forbes.com, 8 July 2026

Word History

First Known Use

1708, in the meaning defined above

Rhymes for borehole

• amphibole
• asystole
• buttonhole
• casserole
• centriole
• decontrol
• glycerol
• metropole
• monopole
• multipole
• omeprazole
• oriole