Nautilus

['nɔːtɪləs] or ['nɔtɪləs]

解释:

(noun.) a submarine that is propelled by nuclear power.

安迪编辑--From WordNet

解释:

(n.) The only existing genus of tetrabranchiate cephalopods. About four species are found living in the tropical Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle. See Tetrabranchiata.

(n.) The argonaut; -- also called paper nautilus. See Argonauta, and Paper nautilus, under Paper.

(n.) A variety of diving bell, the lateral as well as vertical motions of which are controlled, by the occupants.

安编辑

解释:

n. a Cephalopod found in the southern seas once believed to sail by means of the expanded tentacular arms: a kind of diving-bell sinking or rising by means of condensed air:—pl. Nau′tiluses or Nau′tili.—adjs. Nau′tiliform Nau′tiloid.—Paper nautilus any species of Argonauta.

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