chambered nautilus definition

  • noun:
    • See nautilus.
    • A marine mollusc, associated with family Argonautidae native to the Pacific Ocean and Indian Ocean, which includes tentacles and a spiral layer with a few air-filled chambers.
    • cephalopod regarding the Indian and Pacific oceans having a spiral shell with pale pearly partitions
    • See nautilus.
    • A marine mollusc, associated with the family members Argonautidae indigenous to the Pacific Ocean and Indian Ocean, with tentacles and a spiral shell with a series of air-filled chambers.
    • cephalopod of this Indian and Pacific oceans having a spiral shell with pale pearly partitions

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