Real Dictionary

woodworm
countable noun: Woodworm are very small creatures which make holes in wood by eating it.
uncountable noun: Woodworm is damage caused to wood, especially to the wooden parts of a house or to furniture, by woodworm making holes in the wood.

woodworm in American English
noun: a worm or larva that breeds in or bores into wood

woodworm in British English
noun: any of various insect larvae that bore into wooden furniture, beams, etc, esp the larvae of the furniture beetle, Anobium punctatum, and the deathwatch beetle