Ter·e·din·i·dae | \ ˌterəˈdinəˌdē\
Definition of Teredinidae
: a family of marine bivalve mollusks (order Eulamellibranchia) that live in burrows (as in wood or clay) which they rasp out with their small trilobed shells and line with a calcareous secretion, are very destructive to marine wooden constructions (as ships and wharves), and are vermiform with very long siphons united through most of their length — see bankia , shipworm, teredo — compare pholas
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