"Carpenter ants" refers to a type of ants that can damage wood in buildings. They make tunnels in wood, similar to how a carpenter does when building something. Full definition
Some were expected, such as the strict compliance to heritage bylaws, and some not - so - expected, like the armies of carpenter ants hidden in the kitchen ceiling and garage and the water entering the house in 18 places (none of which came from the roof) on four levels. (styleathome.com)
To see whether trophallaxis plays a role in ant communication, LeBoeuf and her colleagues collected the trophallactic fluid of Florida carpenter ants (Camponotus floridanus). (sciencemag.org)
Well, if you used a slow acting bait with carpenter ants, they'd eventually take it back to the queen. (geekwrapped.com)