borer

(bôrər)

noun

  1. a tool for boring or drilling
  2. a person whose work is to bore holes
  3. an insect or its larval worm that bores holes in trees, fruit, etc.
  4. a shipworm

See borer in American Heritage Dictionary 4

noun
  1. A tool used for drilling.
  2. An insect or insect larva, such as the corn borer, that bores into the woody parts of plants.
  3. Any of various mollusks that bore into soft rock or wood.

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