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Any of several cephalopod mollusks of the genus Argonauta that have eight arms, the female of which is much larger than the male and inhabits a paper-thin shell that serves as an egg case. Also called argonaut.
(Animals) any cephalopod mollusc of the genus Argonauta, esp A. argo, of warm and tropical seas, having a papery external spiral shell: order Octopoda (octopods). Also called: argonaut Compare pearly nautilus
any swimming octopod mollusk of the genus Argonauta: the female produces a delicate shell into which she lays her eggs.
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|Noun||1.||paper nautilus - cephalopod mollusk of warm seas whose females have delicate papery spiral shells|
octopod - a cephalopod with eight arms but lacking an internal shell