core drill
1
6.1
- noun
- /kɔr drɪl/
- Specialized
:
perforadora de núcleo
- The geologist used a core drill to extract a cylindrical sample from the frozen ground.
Like he has, he has finds all this evidence of these precision core drills and these precision saw cuts in these basalt stones.
- Like he has, he has finds all this evidence of these precision core drills and these precision saw cuts in these basalt stones.
Examples
-
To investigate the soil layers, they employed a powerful core drill to reach depths of several meters.
-
Jan tried raising the core drill.
Fiction book (1998) -
Right now he's buying a hollow core drill.
Fiction book (1995) -
" Seconds later, Jan was operating the bug's core drill from her own workstation keyboard.
Fiction book (1998) -
*Fires up the core drill, pre-orders the black market Russian nukes*
Blog text (2) -
Like he has, he has finds all this evidence of these precision core drills and these precision saw cuts in these basalt stones.
-
In a welder's mask, the hollow core drill drives the 10" diameter bit into the truck's armored plating.
Fiction book (1995) -
For his project on geological formations, he ordered a new core drill specifically designed for hard rock.
Surface Forms
Morphology
The meaning is directly and compositionally derived from 'core' (a cylindrical sample) + 'drill' (a tool), so a B1 learner who knows both words can infer it is a drill used to remove cores. This noun–noun compounding expresses a straightforward purpose/use and is a common, cross-linguistically transparent pattern.
Etymology
Core drill comes from what the tool does: it drills out a round core, a central plug of rock or concrete. So, a core drill is a drill made to cut out that cylinder for tests or to make exact holes.