
1) Borer 2) Teredinid 3) Teredo
Found on
https://www.crosswordclues.com/clue/shipworm

1) Clam 2) Teredinid
Found on
https://www.crosswordclues.com/clue/shipworm

• (n.) 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.
Found on
http://thinkexist.com/dictionary/meaning/shipworm/

(latin: teredo navalis) This little animal eats wood. It only resides in salt water. Thus wooden wrecks in the Baltic Sea and sweetwater lakes are spared.
Found on
http://www.abc.se/~pa/uwa/glossary.htm

any of the approximately 65 species of marine bivalve mollusks of the family Teredidae (Teredinidae). Shipworms are common in most oceans and seas ... [2 related articles]
Found on
http://www.britannica.com/eb/a-z/s/84

<zoology> 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. ... (06 Mar 1998) ...
Found on
http://www.encyclo.co.uk/local/20973
Ship'worm` noun (Zoology) 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 .
Found on
http://www.encyclo.co.uk/webster/S/89

[
n] - wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells
Found on
http://www.webdictionary.co.uk/definition.php?query=shipworm
teredinid noun wormlike marine bivalve that bores into wooden piers and ships by means of drill-like shells
Found on
https://www.encyclo.co.uk/local/20974
No exact match found.