nautilus
definition: cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions
example:
speech part: noun
synonyms:
chambered nautilus
definition: cephalopod mollusk of warm seas whose females have delicate papery spiral shells
example:
speech part: noun
synonyms:
paper nautilus
definition: a submarine that is propelled by nuclear power
example:
speech part: noun
synonyms:
nuclear submarine
nuclear-powered submarine