Pronunciation: (bôr'ur, bōr'-),[key] —n. 1. a person or thing that bores or pierces.
2. Mach.a tool used for boring; auger.
3. Zool. a. any of several insects that bore into trees, fruits, etc., esp. a beetle that bores into the woody part of plants.
b. any of various mollusks, worms, etc., that bore into wood, stone, coral, or shells.
4. a marsipobranch fish, as a hagfish, that bores into other fishes to feed on their flesh.