船蛆
Shipworm \Ship"worm`\, n. (Zo["o]l.) Any long, slender, worm-shaped bivalve mollusk of {Teredo} and allied genera. The shipworms burrow in wood, and are destructive to wooden ships, piles of wharves, etc. See {Teredo}.
shipworm n : wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells [syn: {teredinid}]