Definition of "cork-borer" []

• Any one of the following insects, which bore into the corks of wine-bottles: Rhizophagus bipustulatus, a nitidulid beetle; Tinea cloacella; Endrosis lactulla; and Asopia farinalis. One of the sow-bugs, Oniscus murarius, also has this habit, but probably only follows insect damage. (noun)

The Century Dictionary (Public Domain)

• "Remove cylinders from the longest diameter of each potato by means of an apple-corer or a large cork-borer (i. e., one of about 1.4 cm."