plural noun Nau·til·i·dae \-ˌdē\

Definition of Nautilidae

  1. :  a family of cephalopod mollusks that comprises nautiloids with closely coiled shells and includes all recent members of the order Nautiloidea — see nautilus 1 b

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Origin and Etymology of nautilidae

New Latin, from Nautilus, type genus + -idae

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capable of being understood in two ways

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