a worm, mollusk, insect, or insect larva that bores into wood, other plant material, or rock
a beetle that feeds on grain and rice and is a common pest of granaries and flour mills
any of a number of burrowing bivalve molluscs which bore into rock and other hard materials, in particular:
an ambrosia beetle (family Platypodidae), specifically the larva, which makes minute round holes in timber
a beetle that feeds on grain and rice and is a common pest of granaries and flour mills