nautilus

Primary Meanings of nautilus

1.
n
cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions
2.
n
a submarine that is propelled by nuclear power
Full Definitions of nautilus
1

n cephalopod of the Indian and Pacific oceans having a spiral shell with pale pearly partitions

Synonyms:
chambered nautilus, pearly nautilus
Type of:
cephalopod, cephalopod mollusk
marine mollusk characterized by well-developed head and eyes and sucker-bearing tentacles

n cephalopod mollusk of warm seas whose females have delicate papery spiral shells

Synonyms:
Argonaut, Argonauta argo, paper nautilus
Type of:
octopod
a cephalopod with eight arms but lacking an internal shell
2

n a submarine that is propelled by nuclear power

Synonyms:
nuclear submarine, nuclear-powered submarine
Type of:
U-boat, pigboat, sub, submarine
a submersible warship usually armed with torpedoes

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